Wanting suitable multimedia interactive program

I’m seeking a suitable multimedia interactive program that we can easily upload text, graphics & audio visuals to. There used to be a program called Conveyor that did exactly what we wanted but I can’t find where to access it anymore. We are wanting to develop an online site based on a confluence of these 2 models – Heritage Victoria’s What House is That interactive neighborhood http:/heritge.vic.gov.au/Heritage-places-objects/What-house-is-that/interactive.html & Rouse Hill House & Farm Virtual Tour http://www.thehills.nsw.gov.au/external/hillsvoices/RouseHillEstate/index.html

If anyone can help with this request it would be most appreciated.