HTML Help for the net

I am trying to create a html help site, this is to be isp based like HTML help on a system, I have designed the modular html system and running it from the .chm files it works fully. However when running it through a web-browser as normal html files the modulars system works to an extent. I mean the contents section of the modular help is fully assimilated and working but the index is only showing the index details of the main index file.

appreciate all help given

D.G.Holmes
Gap Student