[Ubuntu 10.10]WiFi Detected,Connected but Firefox won't connect.

[aggouras]

This is really pissing me off. I installed sucessfully Ubuntu 10.10 a few days ago. Everything worked perfect, except the Internet. I select to connect on my WiFi access point and it says Connection Established. However, when I get to Firefox, it says connection Timed out. I was told to check up the Proxy Firefox settings but Firefox was already working without using proxies because the "No proxy" radio button was selected. In addition, this happens when I enter the command sudo apt-get install. It also happens when I go to update the drivers but says they can't be downloaded.
When I type nslookup in terminal it shows nothing. when I ping google I both get and receive packets.

I am using a 11g Wireless LAN LevelOne WNC 0305-USB.

Spoiler (Click to View)

Useful wget output of google.com

Spoiler (Click to View)

Code:

-2011-04-06 14:45:57-- http://google.com/
Resolving google.com... 209.85.147.104, 209.85.147.105, 209.85.147.106, ...
Connecting to google.com|209.85.147.104|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: http://www.google.com/ [following]
--2011-04-06 14:45:59-- http://www.google.com/
Resolving www.google.com... 209.85.147.106, 209.85.147.147, 209.85.147.99, ...
Reusing existing connection to google.com:80.
HTTP request sent, awaiting response... 302 Found
Location: http://www.google.gr/ [following]
--2011-04-06 14:45:59-- http://www.google.gr/
Resolving www.google.gr... 209.85.147.104, 209.85.147.105, 209.85.147.106, ...
Reusing existing connection to google.com:80.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: `index.html'

[ <=> ] 9,557 7.37K/s in 6.3s

2011-04-06 14:46:08 (1.47 KB/s) - `index.html' saved [9

How can I solve this problem? I really want to use Ubuntu. Thanks