Today I updated DUDB and DUtils with new functionality.
DUDB 2.4 has now udb_renameUser(oldnick[],newnick[]) added and DUtils 1.10 has now a new function called frenametextfile(filename[],newfilename[]). I added both of them, because fputchar is still broken in sa-mp 0.2 on linux machines, so dudb uses the secure [em]fcopytextfile[/em] instead of the [em]fcopy[/em] which only works on windows.
Please update both, if you are using Dini, too.
