O.K. - Take a deep breath

Just pull up her address and say "Hey what's up?" I met you the other night at _______'s party and thought I'd give you a "shout" . Ask her how things are going and if you're really brave maybe just maybe ask her to meet you for coffee or drinks??????
If you are not comfortable with that then wait for her response and if it's a good response mail her back until you get the nerve to talk in person with her.
She didn't give you the info for no reason - remember that. If she wasn't interested she would have just brushed you off.
Let me know -

Sorry it takes me so long to get back - I'm at work