Yeah, tested it and it works as intended.
PrimetheGrim our multiclassing rules are as follows:
1) You cannot have a difference level of more than 10 between your classes. A bard 1, fighter 1, cleric 18 built would not work. But a Bard 4, Fighter 4, Cleric 12 would.
2) If you ever take a prestige class you are required to invest at least 5 levels in it by the time you get to level 20.
3) Monks and Paladins can only multiclass into prestige classes.
You can see our server rules here:
http://www.nwnravenloft.com/forum/index.php?topic=2863