Access IiTunes store

I have semantec endpoint protection on my computer. I recently updatedto  Itunes 10.6 and now can't access the iTunes store. iTunes tech support says access is probably blocked by semantec. How can I unblock it?

I have semantec endpoint protection on my computer. I recently updatedto  Itunes 10.6 and now can't access the iTunes store. iTunes tech support says access is probably blocked by semantec. How can I unblock it?