Hi Daniel
First off, I just wanted to say that I edited your posts to remove the full color, bolding, and italicising. Rules here limit color/bold/italics to emphasize points only, not the full text.
Sorry for the hastle.
Oh, when I check my LAN connection it said 'Limited or no connectivity'
Let's work with this first, as I think this is the same problem as everything else.
How far away from the wireless router are you? If you're too far away, your wireless card will not recieve the signal, and think that you have no internet. Therefore, can you try moving the computer to right next to the router and determine whether you can access the internet from there.
If the above step doesn't work, we will need to reset the router and modem.
However, details for this depend on the type of internet connection (ie, cable, DSL, T1, etc).
Because of this, post back with:
1) whether the first step worked
2) a description of how everything is connected (ie Modem>Router>computer)
3) the type of internet connection
4) the type of modem, if possible.