found it
Apparently IIS is on the XP Home disc, however when you go to Add/Update components its not available so....
goto c:\windows\inf and open sysoc.inf in notepad
look for a line that says something like...
iis=iis.dll,OcEntry,iis.inf,hide,7
and remove the word 'hide', the line should now look like this....
iis=iis.dll,OcEntry,iis.inf,,7
save the file, reboot for good luck, then go to add/remove windows components, and if i'm right IIS should be in the list, and you can install it!!
hope this works, i dont run home on any but know others that do
used to have to unhide the games item in 2000 that way to remove it from work computers as it is hidden by default in 2000