Visual Administrator problem

Hi,

I have installed sneak preview Edition of SAP WAS 6.40 and EP6 SP4 from sdn. I want to setup a SLD connection. when I log on to Visual Administrator, I get 2 options

1. Lookup connection via Message Server

2. Direct Connection to a Dispatcher Node

Can anyone let me know, which option I got to select and what HTTP port I need to use to log on.

Thanks,

regards,

Mandar