Wow, I thought I was the only person that bought that. I was in the Navy at the time and we had some Sea Battles in the game I was playing.
-BP
A few years ago I started picking up a whole lot of RM books I was missing secondhand; this was one of them. At least one person bought the PDF on RPGNow as well (it has one rating).
That wasn't even rewritten for RMSS. But if you want to do it you can send Nicholas a proposal!
Not sure I'm quite up to that, but I was thinking about something involving pirates, and given that there are existing rules, it would seem sensible to use them. But they really could do with adjusting for RMU before doing so, and there would look to be a few ways of doing that. Using the relevant bits, but adjusted, creating a conversion booklet, or having the entire supplement converted.