There is a fault when I try to update iTunes to 10.4.1 with Apple Software Update, The message tell me that I should try to update it manually, but it doesn’t work either. My environment is win7 64bit.
Solutions:
Drupal or WordPress? Because I had tried drupal before, felt it was complicated and it’s free theme is not beautiful. So, in the end, I chose WordPress, an easy to use system.
After chosen the WordPress, my first Hosting choice is BlueHost . It is the number one in the recommended Hosting list by WordPress, but I can’t access the IP that BlueHost assigned me from China, If I want to use it, I must gladder. 
So, I chose DreamHost, so far, everything looks better.
This is my first blog, I hope I can hold on.