13
Hi,
xoops sourceforge module repository:
http://sourceforge.net/project/showfiles.php?group_id=41586&package_id=105497&abmode=1
TinyEvent:
http://sourceforge.net/project/showfiles.php?group_id=41586&package_id=105497&release_id=207272
The only modules I know with ability to add fields are efqdirectory and formulize/pageworks. Maybe you can use them and change the language files.
What fields you need to be added?