here it goes. the vodafone mobile connect hardware. its all the same driver. the onli reason why they put z or h at the end of the model serial is because they want saparate the company who build it.

try on vista and fail?
here is the solution for vista premium business:
1) uninstall any application similar/something like join air.
2) reboot your pc/laptop
3) plug your vodafone mobile connect
4) in vista, allow any driver that this hardware wants to install. for example: install.exe, msui.exe. for kaspersky antivirus user, please allow all exeption regarding this hardware.
5) final step will show up saying you extracting packages. after that join air icon will be at your desktop.

how to up the internet connection in vista?
1) if you already plug it, unplug back.
2) open join air application. it will say device not found. be patient.
3) plug in the hardware.
4) allow all interrupt like above step.
5) when no interrupt windows pop up, the join air application will automatically detect your hardware.
6) just push the connect button there. and you'll see its coming.

this solution i found when i got problem with compaq cq20 that come with vista premium business. tested many times before posting here and it actually work fine.

here the software from that ungratefull vodafone k3565-z.