If you install the 2174 kernel for FC1 via yum or up2date it should configure the system boot from those automatically. If you use yum it does the download and install automatically. I haven't used up2date in so long I forget if it does. In any case yum/up2date will install the correct kernel for your system. I don't run (or have) any athlon systems to test so I can't tell you if it is correct to use the athlon version or not. My guess is that you would want to use the athlon version.
If you are using grub as your boot loader it should list the installed kernels and OSes it knows about on bootup in the splash screen. Does it list the new 2.6.0 kernel in there? From where did you get the 2.6.0 kernel?
My disks for FC1 were kernel 2.4.22-1.2115. I installed
2.6.0, apparently successfully. I still get the 2.4.22-1.2115 designation. Is this correct, or did the update not go through as it said? I also just downloaded
2.4.22-1.2174 in plain and Athlon versions. Do i need this, and if so, which one? I am using an Athlon processor. chuck