Zen Cart 1.3.7
Database Patch Level: 1.3.7
v1.3.7 [2007-02-04 10:06:43] (Fresh Installation)

Not sure if this is the place to ask about this but I hope it is.
My friend has messed up her zencart in the best seller area. She has totally redone the categories and a few no longer exists. Now the problem she has is that in her best seller sidebox there are a number of products showing that no longer exists but when the link is clicked it takes the customer to the download page which includes the preview of the product. In one instance I found the preview here:
/shop/bmz_cache/9/92d772f599832392ae38d09c11f33f69.image.550x550.jpg
What we need to know is how to completely remove products from this sidebox that no longer exists? Where to find them in the cpanel and how to remove them. Any help would be greatly appreciated.