Yup, a few of us were over there...
As a long time poster, you know that if you search you'd find there answers..
To hide an icon, press the alt key (lower left hand corner) and click the trackwheel. A menu will appear; select "Hide icon"
It sounds like you bought a previously owned BlackBerry. It probably has an IT Policy on it. If it does, you are going to have a real problem getting rid of it. The only good way is to get onto a BES and have a default policy (with no password policy) pushed to it. Otherwise you have some problems.
Sorry. And welcome to BB Forums!