SA Password

SA Password change for SQL

 What is the easiest procedure for changing the SA password, and what is the procedure for testing the password change? Software/Hardware used: SQL 2005 SP3

Retrieving the 'SA' password

By mistake I deleted my SA account. Now I am unable to access the isql I had done. I know that if you have lost the 'SA' password, then you can regenerate another one. I followed the steps outlined in the SearchEnterpriseLinux ATE answer on the topic of regenerating an SA password. But nothing...