Installation seems to be OK but ...

Hello,
Yesterday, to start SQLServer, I have used the DOS Command
setup SAPWD=xxx from C:\sql2ksp3\MSDE.
I think tne mix mode of authentification is correct.
But when I want to connect to the database by SQLEntMan, it doesn't work ...
How can I connect to SQLServer ?
Server adress = name of the computer
Username = ?
Password = password of windows ? password of of SAPWD ?
Thank you any help
Benusername is sa
password is whatever you specified for sapwd