At http://cvs.infodrom.org/packages.debian.org/po/?cvsroot=debian.de you can find some .pot files. Please translate them and send them back to me (You may want to take a look at the translations available at http://cvs.debian.org/webwml/portuguese/po/?cvsroot=webwml especially for files like langs.pot). This will ensure that at least the constant strings on all the pages are translated (Some of the strings in these file are only needed on packages.debian.org)

The translations of package descriptions I took from the DDTP (Debian Descriptions Translation Project) which seems to be rather inactive lately. Unless this is fully revived or another similar project is created there is little I can do on this front.