1991 Geo Metro • 93,000 miles

Now I need answers. Badly. Not to be rude but im all out of ideas at this point. My first question on here was whether I should replace the pipe or the engine. Got an answer. So I replaced the pipe. That didnt work. Turns out that the threads that the pipe screws into on the intake are all gone. It is completely smooth except for the very back where I believe there are three threads left. I put a thread sealer on the pipe and screwed it back in as far as it will go. Tested it out today and found out that the leak is much worse than before. What did I do wrong and what do I do to fix it? I'm at the end of my rope here so I desperately need answers. Please.
August 30, 2012.

U say screws are stipped. How many hold this pipe on and im guessing u are leaking coolant.U maybe able to use a tap and die set to rethread the holes. If not u will have to replace the intake manifold not the whole engine.

Aug 30, 2012.
First, the pipe itself screws into the intake. Second, im trying out a sealant and sealing the hole thing to see if that works. Third, if it doesnt work, where do I find an intake manifold for my car?

Aug 30, 2012.