A big, huge, monumental, thank you to the wonderful people at google who made picasa work for linux, too. I have been experimenting with picasa on my ubuntu box since yesterday. This morning, I am happy to say that Picasa works on my AMD64 box.
Here is how I did it: 1) I downloaded the self-extracting installer which says that it is for any x86 installation.
2) After the necessary chmod 755 *.bin (sorry, I never learnt the chmod a+x stuff), you simply execute the installer and it asks if it is ok to install picasa in the directory /opt/picasa. That’s fine with me.
Voila, picasa for amd64, too.
Update!!! Google has already made available rpm and deb files for both x32 and x64 platforms, so the above tricks is no longer necessary!!!