? 2 instances on the same server

[b3zra1y]

hey people -
I'm running my live site (at Arvixe) from a directory called 'forums'.

I need a staging environment where i can test things and restore DB backups to to make sure repeatable processes are in place.
So... I created a directory called 'Staging' and also a staging DB.

Can i assume that... if i have vBulletin running out of 2 directories... and each is pointing to its own database... that the "wires won't get crossed" ?
For some CMS's I know there are architectural things to keep in mind to make sure one site doesn't mess up another.

But I'm not sure how stringent vBulletin is.
Can you help me out ?
I need to make sure I don't flub stuff up.