Hi hennjj. Welcome to the forum. You don't say which sim this is for. Assuming it's FS2002 I think your best bet would be to use TTools to add your 3rd party aircraft to the AI traffic. Check out the AFCAD & TTools forum to see what's possible.http://www.simviation.com/cgi-bin/yabb/YaBB.cgi?board=AFCADTTools

If it's another sim please tell me which one. I might be able to suggest an alternative. Whichever method you use it's not easy for a newcomer. Some instructions are quite complex at first but it gets easier with practice. I'm not trying to discourage you, just don't expect instant results.