BB Curve :: Internet Stopped Working After Update?

i have had my blackberry for about 4 months, i am on a sim only contract which has blackberry internet, this morning i installed the blackberry desktop manager so i could update my blackberry from version 4.6 to 5.0, wouldnt let me do it from my blackberry, dont know why. After i did this everything was working fine but my app world had gone, so i downloaded it again and it was the new version, i noticed i could update bbm, so i tried to do this, i then went out to a area which doesnt have signal for orange, so the updates cancelled, when i got back in signal it was telling me to reboot my phone, do i did this, after i did this and it came back on the internet is no longer working, instead of GRPS it says GSM and when i go to services status it says blackberry internet not connected and i cant send bbms, use facebook or the internet, im really confused and dont understand what has happened,i have tried everything but nothing works, do i need to ring Orange?