Is it compiled into the kernel or as a module?  If into the kernel did you
reboot with that kernel being loaded?  If it's compiled as a module can you
modprobe it into memory? (man modprobe).

> Hello,
> I have ntfs(ro) support compiled into my kernel 2.4.2, but when I try to
> mount the ntfs partition I get "mount: fs type ntfs not supported by
> kernel" ... anyone have experience with this?