Relocation of forum from site root to seperate folder ("/forum") ????

I originally installed vbulletin in site root & I need to move to "/forum" folder....?

I am successful with all transactions by simply changing site url in vboptions in admincp to http://mysite.com/forum

But.... The iproArcade continues to reload in the site root instead of the /forum/ folder that I have relocated the vbulletin forum & arcade into.

For example: When I choose a game it looks for arcade.php in root folder instead of the new ("/forum") folder I moved the vbulletin & arcade into.

I am currently still using 3.8.2

Can anyone help....??