I am trying to install the driver for my new DSL Modem following the manufacturaturer's instructions but when do this I get the following warning message about my Linux Kernel and dont understand what it means.

"GCC version 2 compiler, while the kernel you are running is compiled with a gcc version 3 compiler this is known not to work"

The Linux Driver I am using is one provided by the ISP. I cannot find any Driver for a UGA-101 ADSL Modem on the Internet

a. So does this mean I have to use a different or upgraded kernel?
b. Does tthis mean the Compiler I have is not backwards compatible?

Any help I can get to fix this problem is much appreciated.

The kernel you have isn't really the problem. The main issue is that your ISP compiled the driver using an ancient version of GCC. The current gcc version is 4.x, and your ISP used 2.x... They need to get with the times... Your options?

Try to recompile your kernel using an older 2.x version of gcc. This may make your kernel a little larger and slower, but it should work, and may enable you to use the driver from your ISP.

The second option would be to download the latest version of ndiswrapper, and download the windows ndis drivers for the device. It may be possible to make your modem work using windows drivers under linux. It may be worth a try.

Good luck!!

Yeah, I'd try the Ndiswrapper plan first though.