Unable to create questions

i already enabled Multichoice module but it appears only under "Create content" not appear on "Manage questions" tab.

Only two fieldset are appear under "Manage Questions" :
1) Questions always on this quiz (0)
2) Pool of questions randomly selected for this quiz

Still fail. I tried with garland and some other theme also.

<div id="postareainner">
           <div id="tabs-wrapper" class="clear-block">          <div id="h2title"><h2 class="with-tabs"> The Lover Style Profile Test written by donathos</h2></div>		  
          <ul class="tabs primary">
<li><a href="/drupalgame/node/40">View</a></li>
<li><a href="/drupalgame/node/40/image_gallery">Gallery</a></li>
<li class="active"><a href="/drupalgame/node/40/questions" class="active">Manage questions</a></li>
<li><a href="/drupalgame/node/40/admin">Quiz admin</a></li>
<li><a href="/drupalgame/node/40/edit">Edit</a></li>

<li><a href="/drupalgame/node/40/images">Images</a></li>
</ul>
</div>                                        <form action="/drupalgame/node/40/questions" accept-charset="UTF-8" method="post" id="quiz-questions-form">
<div><div id="questions-always-target"></div><fieldset class="collapsible"><legend class="collapse-processed"><a href="#">Questions always on this quiz (0)</a></legend><div class="fieldset-wrapper"><table id="questions-order-1" class="sticky-enabled tabledrag-processed">
 <tbody><tr><th>Question</th><th>Type</th><th>Actions</th><th>Weight</th></tr>
</tbody></table><fieldset><legend><strong>Find and add a question</strong></legend><div class="description">Begin typing a question title or keyword. Suggestions will be presented based on your typing. <strong>You must choose one of the suggested questions.</strong> To add a new question, use the "Create additional questions" section above.</div><div class="form-item" id="edit-always-autocomplete-wrapper">

 <input autocomplete="OFF" maxlength="256" name="always_autocomplete" id="edit-always-autocomplete" size="60" value="" class="form-text form-autocomplete" type="text">
</div>
<input class="autocomplete autocomplete-processed" id="edit-always-autocomplete-autocomplete" value="http://localhost/drupalgame/admin/quiz/listquestions" disabled="disabled" type="hidden"><input name="op" id="edit-add-to-list" value="Add to quiz" class="form-submit ahah-processed" type="submit">
</fieldset><input name="remove_from_quiz" id="edit-remove-from-quiz" value="" type="hidden"></div>


</fieldset>
<fieldset class="collapsible collapsed"><legend class="collapse-processed"><a href="#">Pool of questions randomly selected for this quiz</a></legend><div style="display: none;" class="fieldset-wrapper"><table id="questions-order-2" class="sticky-enabled tabledrag-processed">
 <tbody><tr><th>Question</th><th>Type</th><th>Actions</th><th>Weight</th></tr>
</tbody></table><fieldset><legend><strong>Find and add a question</strong></legend><div class="description">Begin typing a question title or keyword. Suggestions will be presented based on your typing. <strong>You must choose one of the suggested questions.</strong> To add a new question, use the "Create additional questions" section above.</div><div class="form-item" id="edit-random-autocomplete-wrapper">

 <input autocomplete="OFF" maxlength="256" name="random_autocomplete" id="edit-random-autocomplete" size="60" value="" class="form-text form-autocomplete" type="text">
</div>
<input class="autocomplete autocomplete-processed" id="edit-random-autocomplete-autocomplete" value="http://localhost/drupalgame/admin/quiz/listquestions" disabled="disabled" type="hidden"><input name="op" id="edit-add-to-random" value="Add to quiz" class="form-submit ahah-processed" type="submit">
</fieldset><div class="form-item" id="edit-number-of-random-questions-wrapper">
 <label for="edit-number-of-random-questions">Number of questions to randomize: </label>
 <input maxlength="128" name="number_of_random_questions" id="edit-number-of-random-questions" size="3" value="" class="form-text" type="text">
 <div class="description">The number of randomly selected questions that should be assigned to this quiz.</div>
</div></div>


</fieldset>

<div class="form-item" id="edit-new-revision-wrapper">
 <label class="option" for="edit-new-revision"><input name="new_revision" id="edit-new-revision" value="1" class="form-checkbox" type="checkbox"> New revision</label>
 <div class="description">Allow question status changes to create a new revision of the quiz?</div>
</div>
<input name="timestamp" id="edit-timestamp" value="1242235676" type="hidden">
<input name="op" id="edit-submit" value="Submit questions" class="form-submit" type="submit">
<input name="form_build_id" id="form-0d2415ac5ee7287389d26a2d01834d53" value="form-0d2415ac5ee7287389d26a2d01834d53" type="hidden">
<input name="form_token" id="edit-quiz-questions-form-form-token" value="a7561c3541e572b32ef6b0adafe5c2fd" type="hidden">
<input name="form_id" id="edit-quiz-questions-form" value="quiz_questions_form" type="hidden">

</div></form>
</div>

No, none function, i override.
I enabled only multichoice module.

I enabled Long answer module in that i m able to see option but not using in multi-choice module. But only appears under "Create Content" .

And when click on "Long answer" link got error

Fatal error: Class 'TrueFalseQuestion' not found in C:\wamp\www\drupalgame\sites\all\modules\quiz\question_types\quiz_question\quiz_question.module on line 440

Still have a problem.
Plz give me a solution, its very urgent. Just only problem with multi-choice question.

I installed fresh drupal-6.12 with quiz.6.x-beta-1

Attached screenshot.

Thanks for hard-work.
fixed in 6.x.3.0-beta1.