Ryan I think this will probably answer what I need, at least to start with and probably could add the other bits needed, do you know what versions of media wiki it has been tested with, we are currently on V1.5.8 and as we don't have php5 are trying to stay at this level, I'll try it anyway but was just wondering.
Thanks
John
I've tested it with 1.6 (I added a necessary hook). It should work with anything higher; all the hooks necessary exist. I'm not sure if it will work with 1.5 though. You can probably add all the needed hooks.
If you use 1.6, I think you only need to add one hook (ParserBeforeInternalParse). I'd check to be sure though.
V/r,
Ryan Lane