PDANet Install problem

I have googled and search here on the forums and havn't found a similar problem yet.

I downloaded PDANet from the junefabrics site for the bbery and tried to install it. I am currently tethering through the modem driver and desktop software now but I have heard that PDANet will give me faster speeds. I am full bars of 3G and get 30k download which is horrible. I was getting over 1mb when I had my iPhone.

The error states
"Blackberry Desktop Driver is required before you can install PDANet"

I obviously have it installed as it is need to tether now. I have turned it off and even uninstalled and installed the version the the PDANet website. Neither worked and gave the same error. I downloaded just the modem drivers as well and still nothing.

I have also rebooted several times.
Can anyone help?