[3.5.4] normal forum+favorite on the first page

[agl]

I use additional field in the inscription to my forum.
I will use the variable $post[field5] and $post[field6] to determine which forum it will display .

The best way to do that it's to create a new champ in the database with a page in php which link the variables to the forum at the inscription(else it will be verry heavy to get the first page with a lot of if ?).

After that how I can display the "normal" forum with my two other links ?

thanks !