DMG default program is Burn.app!!! Help please!

I just downloaded Fluke 2.0 beta on their website.
This is the link:
http://code.google.com/p/flukeformac/downloads/detail?name=Fluke_0.2.5b.zip&can=2&q=

I installed Fluke and it seemed like it wasn't working.
So i uninstalled with the file inside called, "Uninstall Fluke.tool."

It says,
"This will uninstall Fluke. Press any key to continue..."
so i pressed "Enter" then,
"Deleting Fluke and its libraries...Password: "
typed in my password.
Then i realized that DMG. is opening on Burn.app.
PKG. files say their kind is Document.

Some more weird things are happening.
I checked with VirusBarrier X5 and didn't get any solutions.

How do I solve this problem?