What version of SuSE you have?
11.4 > or lover?
in terminal :
yast
go to Seystem/ Runlevels
and check if Apache is running there and on what levels (Choose Advance).
Its strange as apache should be running.
Anyway... Can you access the
http://localhost ??
Try
service httpd status
--------------
How about firewall??
is port :80 open?