PHP registration script

I've searched EVERYWHERE for one, but just couldn't find it. I know I just have to insert data into the accounts DB, but I don't know in which tables I have to insert. I have basic PHP and MySQL knowledge and I can do it by myself, but I don't know which tables I have to tamper with.

P.S. columns*

the account.sql has different name columns. if you check your registration pgp you will see the difference in names

I have the script ready. But only 1 problem remains:
What is the encryption method for the password?

Code:

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base64_encode(pack('H*',sha1("password")))

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Worked! Thanks :)