The image of the stacked books will show up if WinRar is your default program for opening archive files...so the files with that icon are archive (compressed) files (eg .rar or .zip files). A jpeg file shouldn't show up with an archive icon.

I'd stay right away from those files - they may be infected. At the least, right click on the search result > advanced > lookup file with Bitzi. If other users have rated the file, you'll get some idea of it's content & quality. If the file has heaps of sources, but no Bitzi rating then avoid it. If you do decide to download anyway, make sure that you're using a good, up to date AV program & scan all files that you download, before you open them.

If you're having problems with Pro support, let us know when you bought Pro, how much you paid for it & which vendor shows up next to the purchase on your credit card statement.