Is it for a new player? If so, you must check that the map you are playing on has the new player in its Player List. You may want to acquire the script debugger from this site (
Generals Editing Utilities)
It seems to me as if you have just edited the build list in its raw form in the AIData.ini.. this may result in an endless loop that tells the AI to find the correct position to place the building unless this is done precisely. You may wish to load up WB, click the build list tool, select your faction, place your structures (starting with the command center, or an equivalent initial building), once you are done hit the "Export" button and navigate to your Command and Conquer Generals Zero Hour\ directory and find the file <faction name>_BuildList.ini. Copy the contents of that file into the appropriate place in the AIData.ini.
That way you have a visual approach to designing the base layout.