I finally wrote a tutorial on using those pesky RF link modules. When I first started out using the RF modules there were only two tutorials available and they weren't so clear. After a month of struggling with the RF , I managed to get it to work. I had some spare time on my hands so I wrote up a giant tutorial on using the RF modules - its filled with code, schematics, and helpful tips.
Link : http://narobo.com/articles/rfmodules.html