Sheryl: Yes, Hoya australis has an amazing fragrance!
Sorry about your Hoya compacta ... that particular Hoya sure seems to be a mealy magnet with so many little nooks and crannies for them to hide! I had a very large Hindu Rope Hoya but lost it to last winter's freezes. I used to keep q-tips and rubbing alcohol on hand just for that plant! This is what it looked like summer of 2010: