Ok, here is the patch:
https://openacs.org/bugtracker/openacs/patch?patch%5fnumber=606
I did a "cvs diff", added the catalog files for english and spanish and packeted everything in a tar file. Is this ok? If not, please tell me.
Note: I did not internationalize the "4 minutes ago"-like messages. They come from util::age_pretty procedure which is not internationalized. I don't really know how to do it to support the big list of languages in openacs. Any suggestions?