Howdy -
The swimming standards are the same for everyone - just like the survival stuff for some other types of training, it seems more dependent on how comfortable you are in the water, vice any sort of gender issue. The run is based on both sex and age - you have to score at least a good-low for your group. Have no idea how this works into your NSS, but I think that's where you really need to hang with the guys...
When I got my flight gear and they gave me one of the female flight suits to see how I liked it. As far as I can tell, it's got a longer zipper which may be more functional for long flights, isn't really comfortable to sit in. (I'll give you explicit details off-line if you want...) It's also supposed to be cut for a woman's form with wider hips and narrower shoulders, but I'm pretty thin and haven't noticed anything.
cheers -
Rugger