IIS v6 and yes the account has full access to both of those directories

I'm sure this has been covered before in here but I can't find it. I've got the php installed, MySQL installed and database built. I've got iis running and am able to serve a basic webpage over it. So far so good. I've moved the html over to the root directory for the website(in this case its xoops). I've added index.php to my list of executable start pages...I've adjust the permissions to all the folders in that director and the php directory to IUSR_MACHINE. Now when I try to start the actual install of the software I get a message stating that "No input file specified" I'm sure I've missed a step and if anyone can point me back in the right direction I'd appreciate it.

Thanks in advance
Grey

- I'm just trying to set it up as a local system.