There have been some problems with support emails lately on certain servers. If you don't get an auto-reply to your emails that looks something like this:
then you should instead submit your support question via the helpdesk. [link below] You will have to create a username and password (I used the same username/pass as on the forums).
Surpass Helpdesk
As far as cpanel is concerned: it is accessed via port 2082 In other words www.yourdomain.com/cpanel is the same as www.yourdomain.com:2082 Some firewalls block this port but I haven't heard of any complaints yet of ISP's blocking this port. Until your dns propogates you can also use yourservername.surpasshosting.com/cpanel or the ipaddress/cpanel. The ip should be in your activation email.
Not sure about the subdomains. Submit a ticket via the helpdesk link above.
Hope this helps,
sandersans
:bananadance: