"Fossies" - the Fresh Open Source Software archive 
Member "scribus-1.4.2/scribus/doc/en/old/cross-platform.html" of archive scribus-1.4.2.tar.gz:
Caution: In this restricted "Fossies" environment the current HTML page may not be correctly presentated and may have some non-functional links.
Alternatively you can here view or download the uninterpreted source code.
That can be also achieved for any archive member file by clicking within an archive contents listing on the first character of the file(path) respectively on the according byte size field.
Cross Platform Hints and Issues
One thing that exposure has taught me is DTP is one of those areas where cross-platform issues come into play more than most types of applications. PDF does help, but sooner or later, something will pop-up.
Have a look through the Web Links for cross-platform tools and downloads.
Mac OSX/Fink Hints
Scribus on Windows
For those interested in running Scribus on Windows 2000 or Window XP, there is a native version: http://windows.scribus.net.