To enable the VNC session running on display :1 for an oracle user on the SUSE server, please create the file called after.local in /etc/init.d with 775 rights, the file should look like that:
slestest:~ # cat /etc/init.d/after.local
#!/bin/sh
/bin/su oracle -c "/usr/bin/vncserver :1 &"
Just check that you have tightvnc installed:
slestest:~ # rpm -qa|grep vnc
xorg-x11-Xvnc-7.4-27.81.7
tightvnc-1.3.9-81.13.1
slestest:~ #