I have been trying to get to the Teamstudio site all evening and have been unable to. That is not good. I was speaking with a rep at 5pm and it appeared that he couldn't get into his mail either. He said that the administrator will take it down at the end of the day for maintenance at times, but it would appear that it would be more than routine maintenance to have it down this long.
Update: I was unable to get to the site this morning either. I found out a bit before noon today that they changed ISPs and evidently DNS has not been updated accordingly. If you are trying to get to their site, it is up and running fine. Here it the new IP address that will allow you to access their page: 22.214.171.124