Instant Web Publishing won't turn on

[hbjhbj]

I was getting a conflict with Apple's Personal Web sharing, so in the dialog that Filemaker put up asking for a new port, I entered "81". It hasn't worked since, and I'm not sure where to change IWP's port back to. (Advanced settings in IWP is grayed out, presumably cause I can't start IWP). I've tried trashing the .plist, zapping PRAM, I still can't turn on IWP.

Anyone have any ideas?

Thanks in advance!