The Buster PiX10Hub is here! Created by the Community, for the Community.
myhouse.x10.com has boatloads of problems. The solution sees to Logmein.com. That has been posted here before, search for it.
As to MyHouse Online, I wouldn't use it if X10 gave it to me.
birdzeye My house uses IE and I believe java first time you go there you should be asked to download the java script. If you have IE make sure you don't have a pop up blocker running.
... X10 has suffered a serious depletion of programmers in the last few years.