Single-product.php Include Error

Just installed Marketpress on 3.2.1

When I click on a product, I get this message. Seems like it is looking for a template file in my general Wordpress theme that obviously wouldn't be there.

Do I have to use a MarketPress ready theme in order to use MarketPress? I already have my site built, I just want to use this plugin.

Please advise!

Warning: include(***/public_html/compupro/wp-content/themes/knead/single-product.php) [function.include]: failed to open stream: No such file or directory in ***/public_html/compupro/wp-content/themes/knead/ocmx/theme-setup/post-type-redirect.php on line 22