It's not easy at first, but entirely doable with the help of aaronblood's excellent program called Mobo.
Get Mobo here:
http://www.subsim.com/radioroom/forumdisplay.php?f=225
It would be wise to start by reading some of the basic tutorials and learning the program a bit.
Once you've got a good grip of the basics proceed on doing what you originally wanted to do:
http://207.44.214.111/subsim.com/rad...d.php?p=602444
Good luck
