So you're having some problems opening your raw files? Don't worry. It happens every now and then. Especially if you have one of those fancy new cameras that just hit the stores yesterday!
The problem is that new cameras often bring with them new proprietary raw file formats. Of course, one solution (and my preferred solution) is DNG format. Take a look at a recent article I did on DNG, A Scoop of DNG With Your PIE, for more info on that.
There is also a wealth of raw troubleshooting information over on Jeff Tranberry's Digital Imaging Crawlspace. Jeff is a 10 year veteran of the Adobe Photoshop Product Development Team and Chief Customer Advocate for Adobe Digital Imaging! He recently put up an excellent article Why doesn't my version of Photoshop or Lightroom support my camera?. Jeff discuss a whole host of issues around this problem and offers numerous links to other valuable resources. This is one of those articles you just need to bookmark or send off to InstaPaper or Readability for future reference. If you are having raw problems this should be your first stop!
So take heart! Nearly 100% of these raw issues is temporary in nature. Just keep on shooting and don't let it slow you down!