your page file is never read as a single file. It doesn't matter how fragmented your page file is, It will most likley never hurt performance. Plus most defrag utilities will not show you the correct information as to where the file is on your drive. Also, at least on NTFS, defraging a hard drive really doesn't do as much for you compared to fat32. I have 4 defrag programs, each one shows me a different graph as to where my files are. Windows defrag says the page file is in the middle, another says its closer to the begining, etc. The important thing is that it really is defraged. Personally I perfer dirms for my defrag because its fast and appears to do a good job.
So dont worry, chances are you have 1 gig of ram and hardly ever use your page file. And even if you do, your not using more then a few meg at a time, so it doesn't even matter if its defraged. Its just a rumor to sell your more products you dont need.