When you downloaded the file you said to save to hdd & not to open right? I saw that same message a few days ago & I don't even use windows lol (I was installing on a windows machine at the time.) 1stly I would recommend you update your installshield engines see: Update install engines & choose your version.
2ndly I would recommend you install either Java 1.4.2 or else Java 1.5 (take the JRE)
3rdly: I would suggest you choose the english installer & choose to open when you dwnld it. Then run thru the install when it completes dwnlding.

If you have problems with Java 1.5 revert back to 1.4.2