You shouldn't need to copy the AOLserver Tcl procedures into the OpenACS tcl library. This will only make your life harder because it'll be harder to upgrade either AOLserver or OpenACS if they are mingled together.
The AOLserver Tcl files should be left where they are and there should be a directory under ${AOLserverHOME)/servers for each server you have. AOLserver parses those autematically given that you correctly specified that in your nsd.tcl.
