Can't install Songbird 1.2 for Mac.

I have not been able to install Songbird 1.2 for Mac.

I downloaded from the site.

What I received from the download where two files.

One file looked like a regular dmg and was labeled "Songbird 1.2_1146_macosX_i686.dmg".

The other file looks like a plan file (not a dmg) and is marked the same way except that the final extension is .dmg.part"

When I "clicked" to open the dmg file I received the error message "Warning:Songbird_1.2.0_1146_not recognized".

When I tried to click on the "dmg.part" file I received the error message "There is no default application specified to open the document Songbird 1.2 etc."

I have Mac Version 10.5.7 installed on my system, with 2.4 Gz Intel core.

I am trashing these two files.