Adding archive pages to CMS

I am using the CMS, HTMLy, and am trying to list the archives on a separate page, instead of a side column.

In the main page the following command is used to display the archives (and hopefully the tags also) in the column:

<?php echo archive_list() ?>
<?php echo tag_cloud();?>

However, I am having a problem getting the PHP to display the list on a web page. The system uses markdown (.md) so I can’t run it from there.

Any suggestions?