I have a bunch of folders in my Yahoo mailbox, but with the blackberry, I only have access to the inbox and sent folders. Is there any way to file my mail in the other folders or is it just designed to see the inbox and sent folders? Thanks.

I would love to have this too, but it doesn't seem to support folders for Yahoo, POP3, or IMAP accounts other than corporate accounts with BES. In theory there is no reason that this should work when using the IMAP protocol at least (not Yahoo or Google), but they didn't bother to support it.

I'd like to take a stab at this.
1> Keep your computer on 24/7.
2> Reinstall BBDM v4.2 for support as a Desktop Redirector (after setting up MS Outlook to connect & display those Yahoo mail subfolders (filters and such).
3> Pray that it works. or hope that the iPhone partnership with Yahoo makes this exclusive - which I do HOPE NOT!