help with adding new planes (FS2000)

Hey folks, I'm wondering if any of you can help with adding new planes to FS2000. It doesn't work for me. I got the zip files and need to extract them. I did one and I put it in the aircrafts directory of my fs2000 and I could find it in my simulator but it didn't work (some graphics or so didn't make it). Any suggestions?
thanks

If loading aircraft into 2000 is anything like 2002 and 2004 this should show you how.

http://flyawaysimulation.com/postt1800.html

Only use aircraft that were made for 2000, not for any other year.
Good luck.