Reiser and 2.4.4

Hi all I've downloaded and compiled the 2.4.4 kernel sources from Mantel's directory, but there doesn't seem to be Reiser support built in - the kernel panicked when it tried to read my boot directory. Doing a "make xconfig" showed the Reiser fs option greyed out. So, is Reiser support available in 2.4.4, and if so, what do I need to do to get it? Oh well. Back to 2.2.16 for now :-) Olly