Password

1. – See http://codex.wordpress.org/Resetting_Your_Password

2. – As often as you like, it’s your WordPress installation and no one elses.

3. – Also up to you, see item 2.

4. – Nope! This is the staffed by volunteers support forum for self-hosted do-it-yourself WordPress.ORG software installations. There is no phone (or email) support.

Edited with correct links

http://codex.wordpress.org/Forum_Welcome

Edit: If you have a WordPress.COM installation (your profile link indicates otherwise) then you can ask at http://en.support.wordpress.com/

For the differences between the two see this link.

http://en.support.wordpress.com/com-vs-org/

DOH! Totally wrong links posted! WOW.

I meant to post this and http://en.support.wordpress.com/ this http://en.support.wordpress.com/com-vs-org/

(Seriously, I need to get better coffee…)