Yes, it should. I have a D620 which should be about the same, but bear in mind the following:
- Is the HSDPA module really installed (I had to get mine post sales), the SIM slot is there by default. (can you see this thing in Device Manager?)
- Mine is a Dell Wireless 5505 module, using the Dell Mobile Broadband Utility (Vodaphone version)
- Using a pre-paid SIM, first load some airtime & wait a while for data to be activated (overnight is normally long enough)
- Load 2 * R60 vouchers, this can be converted to a 100Mb data bundle (@ R80). I think you phone 147 to do this.
- Vodacom pre-paid SIM also works.