cannot install utorrent on mac (yosemite)

[franklinfranklin]

when i download utorrent from the main website and open the .dmg file a Warning window pops up.

 

it says:

 

The following disk images couldn't be opened

Image: uTorrent.dmg

Reason: image not recognized

 

i tried downloading older versions but it also says the same thing. i have utorrent on my other mac but i downloaded it before i updated to yosemite.

 

anyone know what is going on?