I'm not quite sure I follow. If you mean to see a list of the current loaded modules:
lsmod (as root)
If you want to see a list of all available modules you can cat through /lib/modules/<kernel.version>:
cat /lib/modules/2.4.20 (ls would work too)
If you mean to see what will be loaded at boot time:
Does any of this sound like what you want? If not, could you clarify it more?