Soccergeek, first of all welcome, second, the ranks trolling around here have become really thin since just before christmas...so if we dont get back to you right away, be patient.

ok,
1. what CPUz version are you using?
2. what BIOS revision are you on for the x48?
3. if both of these are current, the jumping from lower to higher freq and the mulitplier changing are normal actions of how these boards are designed to help you reduce power consumption (known as speed step, etc). however, the multi being 9.2 is rather confusing since the minimum step for these processors/this board to my knowledge is 0.5 and i have no idea as to the bolded line thing. could you paste a screen shot of CPUz showing this line and 9.2 (or is this supposed to be a 9.5?).
4. memory only run at 1333? dont believe that for a second...now you may only be able to set it to 1333 in the bios, but that wont stop it from going faster as the FSB increases.

also, try to gie us a breakdown of your hardware (like below), maybe you dont need to buy faster memory.