Here's one that will let you sign up for free, calli; I can't tell whether you have to pay to simply practice English; it does sound as though you'd have to pay to take their test:
http://toeflpractice.ets.org/

There's a little bit of free practice here:
http://www.gettoefl.com/practice.htm

Ah--here we go!
http://www.free-toefl.com/

My computer didn't like this site, but maybe yours won't give you trouble:
http://www.free-toefl.com/ (Note--yes, I was trying to be funny in saying that my computer "didn't like" something!)

Also, Dear, feel free to ask us about anything; perhaps by using a Private Message. You will not be the only one.

P.S.--I loved your bow!   wob {back(wards)--returned to you, in other words}