[TF-dev] about sunvirtuallab.com registering problem

I was told that I needed to join this community:
https://cti.sunvirtuallab.com/community/login.jsp

I have been trying this for a long time, and wia different connections but
as far as I see there is a problem about registering. It takes a very long
time. Once I waited more than 5 minutes but nothing happened. I thought it
was related to browser. I tried via Firefox and Internet Explorer but the
result was same. So I installed Safari too but it made me wait more than 5
minutes. Then I realized that the websites responses but veyr very late. I
tried some of usernames but all usernames I tried are "in use", so I got
angry and also tired about doing that.

Am I the only one who experienced this?