How to change existing license key?

[lpxxfaintxx]

I've been using my friends vBulletin License Key/account (with permission) for over a year now. For reasons, I must now purchase my own license, but I have a question.

I have a forum, already running vBulletin. How do I change the license key to my new vBulletin account without doing a fresh install?

[Dismounted]

Just replace the old files with the new ones.

[lpxxfaintxx]

Is that it? Just simple drag and drop and overwrite? This seems a bit too easy.... :)

[Dismounted]

Yes, that is all.