ios 7 & ipad non-responsive

I installed the ios 7 on my ipad 2 yesterday. I got the message to connect to itunes. I did this and it said I had to restore. I clicked the button but it failed (several times). When I plug the ipad into the computer it doesn't appear in my devices or under "my computer". I cannot access the ipad at all as it permanently shows the connect to itunes display. I tried to connect to itunes on several computers to see if I could get it to work but again it failed. Any suggestions?