Specifically I am running Dead in the Water which takes place in a Nebula-B frigate. I am looking for some good tactical (battle maps) that I can use for the locations described in that module.

You might try Maps of Mastery. Chris West has tons of maps that can be combined with each other, as well as plenty of tiles to change things up on the maps.

If you're able to find it, "The Far Orbit Project" has a LOT of maps of the interior of a Nebulon-B. It's an old WEG campaign book published back in 1998, and there are one or two places where you could find it online.

Yeah, just google Far Orbit Project, you'll find it. Pages 34-46 you'll find some deck plans, but these are very much a high-level overview, and not so useful for "tactical combat" maps (at least not in the classical gaming sense). But certainly useful for planning purposes, and perhaps even for creating your own tactical maps.

Thanks to both of you, I will! and I might even own the book- I have most of the wedge books tucked away somewhere.