Yeah, that explains a bit about mysql functions ... but what I have to do uses "$DB_site->query("{query}")" instead of one of those mysql functions listed on there (although it may be the same as mysql_query()), what I have to do to create the table is use a function like this:

$DB_site->query("CREATE TABLE forumread (
timeread int(10) DEFAULT '0' NOT NULL,
forumid int(10) unsigned DEFAULT '0' NOT NULL,
userid int(10) unsigned DEFAULT '0' NOT NULL,
PRIMARY KEY (forumid),
UNIQUE userid (userid),
KEY userid_2 (userid))");

except that I want two fields and one row, not just one field like in the tables used for users, posts, threads, etc. and I'm not totally sure how to do this (which is why the code above may be wrong).