16.gif 
17.gif As long as it is a system image from 7723, it can be changed freely, like avatars or badges. Some sections also have their own URL IDs, for example, the on-demand section is 94, the Java section is 148, etc.
7723.cn/hy/hy.asp?myid=&text=&hy_id=9999
You can change the 9999 at the end of this URL to any member you want to view, for example: 7723.cn/hy/hy.asp?myid=&text=&hy_id=17569
Explore the others yourself. PS: This is just for viewing, it won't hijack accounts (this doesn't count as an external site, right? They are all 7723 URLs).
