Hi Vern
For Victoria, there's three sites you cannot go past 
 
One is 'vr.net' (the one you've found), which is a treasure trove of information on gradients, stations, rolling stock, etc. If you are building a route, the grades and curves section is fantastic.
The second is Peter Vincent's website: 
http://www.pjv101.net/
More of a 'rolling stock' website, it's still a fantastic resource if you are building a 'prototype' route. Use the 'search' tool to search for specific stations, and you can sometimes find some rather useful shots 

 Also good for seeing how various early era trains were made up!
And for Victorian Trainz, there's VicTrainz... 
http://forum.victrainz.com.au/ Not so much a resource site, but a group of Victorian Railways modelers (and in general, Australian railways!) who share ideas, content, etc. Jerker is our 'master DEM builder' 
 
There's also a few other sites for those interested in the VR... Most are rolling stock oriented, but...
http://www.vicrailstations.com/ - This one contains recent photos of many Victorian stations. Particularly handy to get a 'feel' for the surrounding land. Also points out landmarks, etc, that are still standing at many closed/destroyed railway locals.
http://www.signaldiagramsandphotos.com/ - another with a multitude of signal diagrams, many of which aren't on Mark's website (vr.net).
This one is a rolling stock focused one, as well as 'general' railway photography, but again can have many very interesting B&W photos to help get a 'feel' for many locations: 
http://www.robx1.net/
 
Zec