Custom query in postbit

[leenster]

Hey guys in my vb database i have a custom table that contains information about our users. We run a couple game servers and in that table we have the stats of our members.

my question is how do i add some of this info into the postbit?

The info can be linked through a custom profile field.

so
let say the custom table is called stats

Select * from stats where playername='$post[fieldXX]';

where would i put the query?
how do i display this only if the member has the custom profile field filled in?

thanks in advance ..