Alright:
First of all...MAD props to you for playing it cool and not coming across as desperate. Coming here for advice was definitely the right thing to do so I'd say you're in the right frame of mind.
As far as her not calling you, don't sweat it. Wait for a little bit tomorrow and if she doesn't call you back, then go ahead and call her and don't even bring up the fact that she said she would call you. She may just have forgotten or may not have gotten around to it.
Now as far as seeing if she likes you, keep in touch with her and make your conversations on the phone nice and long so that you stay in her train of thought, and ask her if she's busy this weekend. Going out every weekend tells her that you're interested in her AND that you can give her some space during the week.
I think the fact that you guys have made out is already a good indicator that she's into you too, but don't think that she shouldn't call you either. Now this time it's not a big deal, but when you call her tomorrow just say at the end of the convo: "hey if you have a chance call me tomorrow or whenever. And you can call me anytime"
That gives her the clue that it's okay for her to start coming after you a little bit too and might make her feel a little bit more comfortable.
I'd suggest that you guys just do the weekend thing for a while and then maybe step it up later when you feel the time is right. No need to rush into things now. So long as you play it smooth and show interest while not being a leech you're gonna be in good shape. If she doesn't return your calls or says that she's busy on the weekends and can't hang out, oh well. You played it correctly and any hesitation that may be there will be solely on her, and not because of anything you did.
Good luck playa!