One of the best all around lenses are 70-200s either from canon or sigma.
Canon's marketing fluff. It's designated for professional use and the build quality is nice. Oh yeah... the picture quality is also superb.
A lot of them a big and white, look sexy too.
what the difference between a zoom lens and a telescope lens?
Haven't heard of a telescope lens before.
Are all the lenses autofocus?
All EF canon lenses are autofocus. Also all EF lenses from the third party manufacturers like tamron, sigma, tokina are autofocus. You can also mount old lenses like pentax, zeiss, nikon and others on your camera.
Sports are a tough thing to shoot, but with 700 (is that USD? ) you have some freedom. I'd recommend sigma 70-200 f/2.8
http://www.bhphotovideo.com …SA&addedTroughType=search
Or from here:
http://www.sigma4less.com …2B%3D28SG70200F28DCA%3D29
You'll be able to use it for sports, for low light shooting, with your film camera, with teleconverters and the optical quality is very good too. It has pretty much everything you need to get you into the world of telephoto.
Or save the money and study the light and its properties. 
but i find my shots kinda boring since I`m working with the kit lens.
The kit lens is hardly the problem. It can do a lot, just learn to use it.
One example:
http://andrew4137.fotopic.net/p24198952.html