Firtsly, you might want to consider subscribing to our developpers mailling-lists.

A lot of applications still remain in .tar.gz format. We need to have them in RPM format for FTP contribs, as well as for putting them inside Linux-Mandrake itself. From now, you can add your own packages on ftp://ftp.linux-mandrake.com/incoming/

Please announce your upload on devel@linux-mandrake.com.

Actually, there is a big need of packaged KDE applications! A lot of KDE apps (from which koffice) remain in .tar.{gz|bz2} format.

Please consider having a look at our Mandrake RPM HOWTO - and use it!

mdk-RPM-HOWTO.txt

You can also use our generic .spec file. For most stuff, filling in the empty fields should be enough to create a working RPM.