So, I met this girl last Saturday when I hanged out with a group of friends. Got her number, MSN, etc.

On our first chat sessions over the phone and MSN she was really attracted to me.

Tried to set up a meeting last Wednesday here at my house and she said she would come. One day before she said she couldn't make it and maybe we could set up another day.
But she said she would be available only on the next week.

But now it seems she only answers my questions but she doesn't invest in the conversation.

Now, I talked to her again yesterday and she said she could today or next Wednesday.
I couldn't today, so I said "Ok. Then we meet next Wednesday."

Now this is confusing. Am I making her gain or lose attraction by doing the stuff above? Is making her wait for next Wednesday too much? What should I do in the mean time?

Any advice?

ehh thats kind of a hard question
ive been in situations like that many times
in the end most of them worked out
but either i got annoyed or she did
so like it may raise your value because youre a busy (maybe social?) guy or she might think that ur avoiding her
but if she consists to try to set up a date with you then you just gotta get it
sometimes even tell her that u got to run a couple of errands like while u guys are talking (cuz obviously shes free if shes messaging you) and pick her up and just hang out