After much searching, I've found a copy of SCEdit, if anyone is interested, please PM me and I'd be happy to shoot it off to you in an E-mail.
Finding the file has, of course, got me tinkering here and there once again, and I noticed that I had forgotten to adjust the top speed for the Iowa, too. Still set at 5 knots, I increased it to 31 knots, the speed I got for the Iowa out of Janes Fighting Ships.
Ah, I love this sim.
Cheers