run uname -a for some basic info on yor kernel. Here is the output from my suck-ass Pentium 4:
Linux kimp4 2.6.13-15.8-smp #1 SMP Tue Feb 7 11:07:24 UTC 2006 i686 i686 i386 GNU/Linux
See the output? The first field is the name, the second the hostname of the machine, third the version number of the kernel, the SMP indicates SMP support (SMT really, since I have a crappy Pentium 4 and not a dual core), etc.
regarding the topic title: if you search this board you will find plenty of info on compiling a kernel. Or, you could click on "tutorials" in the menubar at the top of every page on this site, go to applications/etc. ( http://www.linuxquestions.org/linux/...GUI_Multimedia
) and find kernel compiling tutorials specific to many distributions.