trying to override the home breadcrumb links

hello, i need some hlep please, my situation is the following:

1. i have a page outside drupal (land.php) where i want the visitors to go to when they first enter the website, so i changed .htaccess settings to go to land.php
2. land.php has 2 links for the visitors to choose their connection speed from so i show them the flash intro based on their connection speed. so they either go to lightning.php or turtle.php, both are outside drupal too.
3. after viewing the intro they click enter link which takes them to index.php which is the drupal installation.

now all of the above was working fine except for one thing, when visitors are inside drupal and click on the home link anywhere, they go back to land.php because it's now the default home page as specified in the .htaccess that i modified. I want the home link inside drupal to go to drupal home page and not go back to choose the intro speed connection.

i tried installing the frontpage module to solve this problem, i didnt change any settings except:
1. checked the box for "Override your HOME breadcrumb links" and put the value "index.php" in the "Redirect your site HOME links to:" textbox.
2. activated the frontpage settings by entering the value "front_page" in the "Default front page:" textbox.

now when visitors first enter the site they go to land.php, view the intro after selecting the connection speed, then when clicking enter i get this error message "This webpage has a redirect loop."

can anybody know what i'm doing wrong in this? i dont know if i'm missing something :S

thanks a lot for your support.