Windows 7: Problem with 1. Network Tray Icon 2. Wireless Broadcom Driver

Hello everyone. This is my first post I hope you don't mind. I am almost desperate and frustrated over this issue I had with my network connection since my netbook crashed overnight (perhaps overheated). So the story is like this.
1. I woke up one morning and figured out that I had forgotten to turn off my netbook with power supply and it was very hot and had a white screen.
2. I unplugged the plug and took off out the battery.
3. I restarted the computer and there were no severe system startup failure, corruption etc.
4. However, I noticed something wrong with my Wireless icon in the taskbar. (See top of attached picture). Basically it wasn't like the original bar-shaped, but has a box with a cable to the left and a big red "X" cross.
5. At first I was able to connect to the wireless networks but although I was connected to the internet, the icon shows that I'm not.
6. The icon started to irritate me and I began to search for ways to troubleshoot it.
7. Somehow, I ended up uninstalling (or disabling then it disappeared) my Wirelesss Broadcom Drive in the 'Device Manager' and tried to re-install the driver for my Broadcom 802.11 Network Adapter. And my wireless connection has failed ever since.
8. I have tried almost all ways to update/install/re-install the driver (lots of versions) but it all for some reason failed.
9. Now I can only connect through Wired and have the same weird tray icon in my task bar.




I am hoping someone might be able to know what went wrong because I've tried all I can including searching over the internet for possible troubleshoots.
Other information.
1. I didn't file a system restore before hand (unwise)
2. My OS is Windows 7 Ultimate 32bits (x86)
3. The wireless network has been working perfectly until the crash.
4. I don't think its a hardware problem although it overheated the wireless card was still working the next day until I uninstalled the driver
5. The "Troubleshoot" program didn't work either.
6. Whenever I open "Adapter Settings" in the Network and Sharing Center I receive a blank page with nothing at all.
7. I read somewhere that it may have also been due to failing to create a "Homegroup" idk if that has to do with this but I did accidentally click the homegroup icon.



Your help is very appreciated!