Style tags are the ones that change link colors and such.
RagTag is a program that you can paste your html in and it will scan it for inappropriate and missing tags.
The style tags came up as 'inappropriate auction tags' that is why I mentioned it.
I still think that it could be in the images somehow. You can file a support ticket. Might be faster than waiting for a staffer to answer here.
Oh and I didn't realize that it was an Auctiva template. I haven't looked at the new ones for a while.