I can't help you with media transfer on your Storm. There are quite a lot of people complaining about version 6 of the desktop software with most saying they had gone back to version 5.
I've got version 6 on my computer but can't really see any point to it. Any media I want I just drag and drop.
I noticed you had updated your device software to version 5. I tried that last night but had loads of problems. Did your update go smoothly?