search threads for pics name?

[alf]

Hi,
Lately I have seen a post with a great number of pics of a nice lady, but the pics were small. I had saved a few with higher resolution from an earlier post, and wanted to provide a link on the first thread.
The only way I could have found it again would have been to search for the pics name (e.g., Tow1.jpg), but this does not seem to be available.
Did I miss something if it is actually possible?
Is this something that could be added? (this can be extended to the name of any type of attachement, I guess it's the same)
Thanx, alf!