tuning is on when tuning each string open, its on or damn close for 12th and 12th harmonic, but are sharp around 5th-7th. what do i need to do,adjust the truss rod?

Appreciate the help thank you.
Your intonation seems to be out. That is an adjustment that is made at the bridge. Do NOT mess with your truss rod. Either take it to a professional and get it set up, or you can set it up yourself. UG has a set up tutorial thread with a section on intonation. It can be found HERE.
1998 PRS CE 22-10 Top Natural Finish
MIM HSS Strat-Electron Blue
"damn close" is not close enough and there will be a slight sharp/flat difference the futher away you move from the intonation point, "ye can nee change the laws of physics" as scotty from star trek used to say.