I have updated my jasjar to WM6 using the official HTC ROM. I have got VFNZ internet working but I'm still having trouble getting MMS to go. The settings on a post in this forum seem to be different to the manual setttings on wireless.vodafone.com.
Vodafone say use port 8080 but the forum post says 9201. Does the connection need to be under MY ISP or My Work Network? Will WM6 have different settings? (surely not).
As an aside, in my opinion, the upgrade to WM6, although unsupported, is well worthwhile. The device seems much more responsive and seems to handle memory much more efficiently.