There are a couple of instructional videos on this subject. they seem to be pretty infomative. It's called Squirters and it's by Seymore Butts.. heh.. anyway.. here is a link for info on the second video.
http://www.iafd.com/title.rme/title=...uirters_2.html
I'm not sure if everyone is capable of female ejaculation.. but have fun trying!