Picasa 2 works on PCBSD!
Step 1: Install Wine – double click on the .pbi file and follow on-screen instructions.
Step 1.1: Install arial.ttf in c:\Windows\Fonts ( /home/username/.wine/drive_c/windows/fonts )
Step 2: Install Picasa – start up konsole, navigate to the directory where your Picasa installer is located ( cd /home/username/Desktop/ ) and run the installer by typing ( wine picasa2-current.exe )
Step 3: Thank the Wine Team and enjoy!