binsteil's dashboard

Hej,
I installed songbird and was wondering how to transfer music from songbird to a mtp device? songbird recognises the sony nwz-s639 but nothing more happens. i can't save sync settings and change between "sync settings" and "manually manage" and the sync button is deactivated aswell. hence it is not possible to transfer music. how do i actually transfer music? just drag& drop?
would be great if someone could help

i use
sony nwz-s639 firmware 1.10
Songbird 1.3.0b1
MTP Device suppot 1.0.15.1203
Vista SP2 32 bit