I met a really nice looking girl out about 3 weeks back, we spent most of the night together dancing and kissed a little, but she told me she had 2 kids and was seeing someone. At the end of the night i gave her my number and said to text me which she never did. Anyway 2 weeks later i bumped into her at the same club, when i first saw her she was hooking up with some guy but then hung out with me for the rest of the night and didnt speak to him again. I asked why did she message me and she said she was trying to be good because she was seeing a guy but it wasnt working out because of her 2 kids. BTW she is 29 and i am 27. We caught a taxi home together and just kissed, i told her to message me the next day which she did asking how i was felling after the big night out. Anyway there some texting back and forth, and she asked for my facebook "so we could keep in touch ". Once she added me her text changed, she reminded me that she had 2 kids and a divorce which i really dont care, i told her i really didnt mind, then she text back saying i was too young sorry, but i thought she already new i was younger. I just recently got back from an overseas working holiday and my facebook does have some pretty crazy party photos which i need to take down. I text back saying thats fine, but if she wants to meet up as friends because i only moved to the city 4 weeks ago and it would be nice to get to know some people. She said that would be cool and we would do it soon and left it at that. The texting was on Monday and it is now Friday, how should i approach this from here?

Man, a LOT of mistakes here.

1) Don't give her your number. Never do that. Very beta.
2) Don't tell her to message you.
3) Don't ask her why she didn't message you. It's not a big deal. You're giving her the power.
4) Don't say "we can just go out as friends." That made you sound desperate and gave her motivation to put you in the friendzone.
5) DON'T take your FB pictures down because they're too "crazy party" ish. You saw this chick making out with a guy in a CLUB, then she kissed you in a cab, before she tucked her little ones into bed. She's in no position to judge.

At this point I would spend my time going after other girls. I think almost all situations are salvageable but this one seems way too complicated and not worth the effort. THAT BEING SAID...

If you're deadset on it, you're going to have to be more alpha. You text her. You kiss her. You make plans. And YOU decide whether you want to be more than friends. She's in your world. Not the other way around. She's made it way too easy on you. Now you have to take control. And take the "you're too young" thing with a grain of salt. 99% of the time it's bullshit.

Two things you could do.

1) If you know she's going out one night to that club or something, you could go with another girl. That would probably do wonders, especially if she's older.
2) You could just text her, be direct, say, hey, I wanna see you... let's get a drink at ____. Try a lounge or something where you can sit next to each other and not across from each other. Escalate physically when you get a chance. Gradually. Don't give her everything at once. I like to do the "that's all you get" line or "we gotta stop" and then just start again and keep doing that.