The geometry chart on the "womens" motolite page is the same as on the "mans" motolite page, in fact the 2007 website doesn't list a "women's motolite". The only potential difference would be in tubing - my XS has a narrower diameter down tube than the bigger frames, all the other tubing is the same.

I don't think there is a problem with standover measurement on my XS but I can check its accuracy if you like. I have quite a bit of standover on my XS - I have a 30" inseam and have 130mm forks on it so I think you'll be ok on that score, the longer your forks and bigger your tyres are the less standover you will have. The MotoLite has a kink in the top tube to help clearance that the racer x does not have.

Titus have always been really helpful when I've had to ask them anything.