Su can be updated by at least 3 ways.
1. Thru google play
2. Thru su itself. (If you are using an old version it is under "preferences" then "check binaries"
3. Thru a zip update which is flashable via cwm. I've seen that in a thread here at xda....
try openvpn or droidvpn or hostpot shield
it is available in the play store and best of all it is free :)
it hides your ip by using a foreign ip. it also compresses data to increase browsing speed and decrease data consumption.
however it depen...