vnc not working right

hi all:

i have opensuse 13.1 and had remote desktop service activated. as my understanding, it is tightvnc based.

now i can connect to it via tightvnc viewer with "192.168.xxx.xxxx:5901" but i have some issues:

1) i can only connect to it via port 5901, not 5900, 5902, 590x.
2) even connected with port 5901, the remote desktop i saw was different from what was on the local machine. on the local, i had one instance of firefox opened with multiple tags, but when i connected to it from the remote, firefox won't start, claimed there was another copy of firefox running.

thanks

_dave