Displaying multiple ddblock basic slideshow in a row

Hi,

I was trying to display 4 small ddblock basic slideshows in one row on my website. i created a new block and put the following code, i don't know if the code is correct because i copied it from php code for advanced slideshow and not basic, but it's showing the slideshows correctly:
< ?php
$block1 = module_invoke('ddblock', 'block', 'view','1');
$block2 = module_invoke('ddblock', 'block', 'view','2');
$block3 = module_invoke('ddblock', 'block', 'view','3');
$block4 = module_invoke('ddblock', 'block', 'view','4');
? >
< table width="100%" cellpadding="5" cellspacing="0" border="1" >
< tr >
< td width="25%" >< ?php print $block1['content']; ? >< /td >
< td width="25%" >< ?php print $block2['content']; ? >< /td>
< td width="25%" >< ?php print $block3['content']; ? >< /td>
< td width="25%">< ?php print $block4['content']; ? >< /td>
< /tr>
< /table>

i submitted the new block as php code input type.

the only problem that i'm having is that inside each cell and above the slideshow an html comment is showing as following: < !-- block content. -- > and i dont know how to remove it! when i look at the code in firebug it shows each td like this:
< td width="25%">
< p>< !-- block content. -- > < /p>
< div id="ddblock-1" class="ddblock-contents clear-block ddblock-processed" style="overflow: visible; visibility: visible; position: relative; height: 150px; width: 220px;" >
< /div>
< /td>
i dont know where this paragraph containing the comment came from, and i dont know why the comment is showing as actual text in my page :(
also if i put the input format as html it doesnt apply the php code correctly...

please help if you know...

Thanks.