First of all, welcome to the linux community!
Googling and forums like this will find answers to just about all of your questions. But here is help with your question...
Are you planning on doing a dual boot?
If so, resize one of your partitions to get some free space for Suse to use. I recommending giving at least 10GB for the default install and some room to play with.
Since you are comfortable with Windows, you might want to use something like Partition Magic to resize your Windows partition. Do not create any linux partitions with Partition Magic, as Suse will do that during the install process.
If you are not doing a dual boot, do the steps below but let the partitioner use the whole hard drive.
Once that is done, boot up off of the first CD.
Suse (and most other distros) will find the free space that you created above and ask you if you want to use it. Do that and leave the partition settings at the default.
Suse will also find your Windows install. Once installed, Suse will put links to your Windows drives on the desktop. It will also set up a boot menu that will let you choose the OS at boot time. The boot menu works with Windows 9x and Windows 2000/XP.
Once you boot up off of the first CD, a graphical setup program will walk you through installing Suse. Since you are just starting out, I will leave the software selection at the default. That will give you a linux environment that is very similar to a Windows environment, thanks to KDE, Suse's default windowmanager.
Follow the instructions and it will walk you through all of the setup.
Once installed, I recommend that you do an online update through the YaST control panel. Suse makes updating very easy with this utility.
Once you have updated everything, you will need to reboot. Most updates do not require a reboot, but since the first update to Suse 8.1 will most likely have a kernel update, you will need to reboot to activate the new kernel.
After that, play around and have fun with you new OS!
Hope this helps!