Cant logon to Demo

Cant logon to Demo

Hi
 
I am setting up a trial of ServiceDesk Plus I downloaded. I have installed the trial onto a 2008R2 server using the defaults, except for the port number which I changed to 8888.
When i get the login page and I type in administrator and administrator for username and password, I just get incorrect username or password. They must be correct as this is the default install.
 
Can someone tell me why. the firewall is off for the domain profile.
 
What ports need to be opened?
 
Any help would be appreciated.
 

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