Phone as modem/data transfer at same time?

[furrycnorm]

I am wondering if there is a way I can use my phone as modem on my ppc to run internet explorer on my pc, and at the same time transfer files to and from my pc to my touch pro. I am running mighty rom 5 and when I plug my phone into the usb I get 3 options:

Activesync
Data Transfer
Internet sharing

When I run the activesync option I can transfer files but cannot connect to the internet. Data transfer is just that, no internet connection either. And internet sharing I can get an internet connection, but no file sharing. In my computer the g: drive that is usually my tp is no where to be found.

Anyone have any ideas?