I also has three major issues
1)Wireless connection
corrected it  using  turning all flages on this file
open termal from drop down or (ALT+F2)
then type cd /var/lib/NetworkManager
sudo nano NetworkManager.state
turn all flags ture
then restart machine it will work
2)You tube and other graphics related update
download for 32/64 bit Adobe flash plugin and install
Alternatevely u can use Ubuntu Software Updater and select the plugin from list
3)For sound i tried some options but didn't work
So tried removing Ubuntu form Add remove programs from Windows
and again downloaded Wubi installer for 10.10 and reinstalled then started working
This might not be the best soultion since u have to analyze best on your drivers and other system config but it works for me for the time being
Hope it helps to you too
Also if you don't mind sending links for the radio links you are trying to listen I can try it on my machine and share you
if I find anything useful to solve your problem