I installed Wine 20050830 this morning and got it working with Notes after fixing a problem with usp10.dll.
I was then using Notes and I selected an attachment and right clicked and selected Save. The notes crash handler then took over and Notes shut down. The crash handler reported and error in uxtheme.dll, but did not give me a trace back to send in.
I'm guessing it is a missing function in uxtheme for the standard "save" dialog box.
Reverting back to Wine 20050725 solves this issue.
Kevin