I have encountered many cases where people cannot see some apps in the market. Luckily I found a way to tackle this problem. Here try this, it should work, however I only tested this on my x8...
Settings —> Applications —> Manage Applications
Back out, choose Google Service Framework
Back out to the homescreen, run the Market (it should fail – that’s what I want!)
Wait at least one minute after the system boots up, then retry the Market.
So did it work for you?