did you put in Modification Wordlets befor you did this hack?
this is all the wordlets for memberlist.
ML_category => q~Category:~,
ML_category_all => q~Display All~,
ML_sort => q~Sort:~,
ML_sort_birthday => q~Birthday~,
ML_sort_joindate => q~Join Date~,
ML_sort_online => q~Online~,
ML_sort_pubname => q~Public Name~,
ML_sort_top => q~Top~,
ML_sort_posters => q~Posters~,
ML_sort_postnum => q~Post #~,
ML_sort_usrnum => q~Member #~,
ML_searchby => q~Search By:~,
ML_searchby_aim => q~AIM~,
ML_searchby_birthday => q~Birthday~,
ML_searchby_joindate => q~Join Date~,
ML_searchby_icq => q~ICQ~,
ML_searchby_interests => q~Interests~,
ML_searchby_location => q~Location~,
ML_searchby_usrnum => q~Member #~,
ML_searchby_postnum => q~Post #~,
ML_searchby_pubname => q~Public Name~,
ML_search => q~search:~,
ML_col_aim => q~AIM~,
ML_col_birthday => q~Birthday~,
ML_col_email => q~Email~,
ML_col_homepage => q~Homepage~,
ML_col_icq => q~ICQ~,
ML_col_interests => q~Interests~,
ML_col_joindate => q~Join Date~,
ML_col_location => q~Location~,
ML_col_memnum => q~Member #~,
ML_col_online => q~Online~,
ML_col_pm => q~PM~,
ML_col_postnum => q~Post #~,
ML_col_postnum_posts => q~posts~,
ML_col_pubname => q~Public Name~,
ML_image_next => q~Next~,
ML_image_previous => q~Previous~,
ML_text_pages => q~Pages:~,
ML_text_search_returned => q~Search returned~,
ML_text_results_out_of_a_possible => q~results out of a possible~,
ML_memberlist => q~Memberlist~,
ML_memberlist_link => q~memberlist~,
ML_memberlist_settings => q~Memberlist Settings~,
ML_error_no_results => q~No results were found for what you requested, please try another query.~,
ML_error_sort_incorrect => q~Incorrect sort type selected, please try again.~,
ML_error_search_invalid => q~Invalid searchkeys.~,