Does anyone know what table houses the info for images?

My images have gone haywire.  Stuff is showing up that should have been overwritten, stuff is showing up where no image was uploaded, stuff isn't showing up at all where it was uploaded.

If anyone with a deeper understanding of NopCommerce is curious, I'm one of those people who has duplicate subcategory names.  It's a music shop, so for instance I have:

CDs --> Artists: A --> AC/DC

and

DVDs --> Artists: A --> AC/DC

I would ASSUME that the table that houses the images does so by ID, but I've got a picture of ABBA showing up for CDs --> Artists: G and an OLD version of my store's logo showing up for CDs --> Artists: K.  It makes absolutely NO sense to me how this could possibly happen, and it makes even less sense to me how an old version of my logo, which I re-uploaded with the same name so it would overwrite the original, is showing up AT ALL.

Have you modified anything in /Nop.Web/Content/Images/Thumbs/ recently?

Not that I know of.  All I did was go into the Admin panel and upload the logo (multiple times, as I had to keep resizing it so it would fit properly), then went to the Catalog section and uploaded images for 2 bands (in both the CD and DVD categories).  Nothing back-end, nothing using Explorer, it was all done through the Admin panel.

Uploaded images' original binary is stored in dbo.Picture as long as your Picture setting for "Store in db" set to true - there's also a setting in newer versions of nop to store Pictures in azure.  

Can you provide a link to a page with erroneous images?