[Lerchey]

Check the SE IV license agreement that comes with the game (I would do this, but my copy is at the office, and I'm not). I know with other Shrapnel games, specifically, WDK and it's successor, The War Engine, it states that any mod created using WDK/TWE is owned by Shrapnel and may not be sold, though it may be distributed as freeware.

I'm sure that Shrapnel and Aaron thought about this before hand... If no one official Posts here, I would think that this question would warrant email to either Richard or Aaron.

General John
"No, I'm not a lawyer, and I don't play one on TV."