haha I'm not sure I understood all of that post. Also we still don't use Proof Approvals in our environment. But here's my question anyway.
Can you do a document report, and use the Large Thumbnail field on the view, and put this in the filter?
EXISTS:a:$$OBJCODE=PRFAPL
EXISTS:a:approverID=$$USER.ID (or if there really is a specific ID put it here)
EXISTS:a:approverID_Mod=eq
EXISTS:a:documentVersionID=FIELD:currentVersionID
EXISTS:a:isAwaitingDecision=true
EXISTS:a:isAwaitingDecision_Mod=eq
Mainly I want to see if that generates the same number of lines as a proof approval report that filters on approverID=$$USER.ID and Awaiting Decision=true. It does for me, but we have like.... 23 outstanding proof approvals to experiment with (most of which were probably mistakenly entered).
And my Large Thumbnail column shows a thumbnail for a PDF (I read that you said yours does not, but I don't know which report you're on and I didn't bother using your textmode since the canned field works for me).