Saving users data on a backup
 

I am not all that savvy at this stuff and I want to do this later when vb4 goes gold. All I want to do is maintain post and all users data etc... I have a full image of the server if needed at a later date. Can I just use myphp admin to do this and restore it as that seems the easiest method? I am not going to delete my mysql database but wanting to do a fresh install. Also what about the database backup in the admin panel of vbulletin?

I hope I made sense to what I am wanting.