Category Monthly Archives is dying before it displays all the months by checking article type in the MTEntries loop

Hi,

I am iterating through the category monthly archives and I am checking whether that particular month contains article of particular type by looping through MTEntries for that particular month and then I am displaying that month in the category monthly archives.

The problem is that the script dies after displaying few months. The page is not loading fully. I am using dynamic publishing for this template.

<mt:IfArchiveTypeEnabled archive_type="Category-Monthly">
 <mt:ArchiveList archive_type="Category-Monthly">
         		<?php
			  $archiveTitle = $this->tag('MTArchiveTitle');
			  if(eregi("$name","$archiveTitle"))
			  {
			?>
  <MT:Entries field:article_type="Blog" lastn="1">
    <li><a href="<$mt:ArchiveLink$>"><$mt:ArchiveTitle$></a></li>
  </MT:Entries>
			<?php
			  }
			?>
 </mt:ArchiveList>
</mt:IfArchiveTypeEnabled>

Also, I want to check for the passed category parameter through query string other than the method I am using above.

Any help is truly appreciated.

Thanks,
Sunil