Please enable Serbian translation in system-config-network. The locale(s) for Serbian are sr_CS.UTF-8 (default, cyrillic script, available in CVS) sr_CS.UTF-8@Latn (po files not yet available in CVS, still awaiting to be added to ACL) More info on these locales can be found here if needed: http://srpski.org/locale/ The keyboard for sr_CS is "srp" in XKB. The latin locale sr_CS@Latn uses "srp(latin)". The timezone for Serbia and Montenegro is GMT+0100.
There are po files for both sr and sr@Latn in CVS. Could you include them in distribution of system-config-network?
Translated po files are still not included in fc5test3.
ALL_LINGUAS in configure.in probably needs updated to match the po files in po/.