BB Desktop Software :: How To Install Software From Disc That Came With The Phone?

I am trying to install the software from the disc that came with the phone, and I have also tried downloading it and installing it that way and still no luck. I am using Windows XP. I get the following:
The InstallShield Wizard pops up and says
Status: Pending Requirement: Microsoft.NET Framework 2.0 SP1

and when I click Install, at first it says
Status: Downloading

And then an error message pops up:
while downloading the file http://saturn.installshield.com/prerequisites/microsoft .net framework 2.0 sp1.prq. What would you like to do? Retry or Cancel.

If I click Retry it just does the same thing over and over again. If I click cancel, the message changes to:
An error occurred while downloading the file http:..download.microsoft.com/download/0/8/c/08c19fa4-4c4f-4ffb-9d6c-150906578c9e/NetFX20SP1_x86.exe. What would you like to do? Retry or Cancel

Again, Retry just repeats the message. The final message after clicking Cancel again reads:
The files for installation requirement Microsoft .NET Framework 2.0 SP1 could not be found. The installation will now stop. This is probably due to a failed, or canceled download. Yes or No