Error fatal

You do or don’t have wp2.1? I don’t understand your last sentence.

wp_list_bookmarks is a function that is for 2.1 and above. I’m guessing that you’re using 2.0.

Template_Tags/wp_list_bookmarks

Probably not going to work unless you want to change the file to use one of the older function calls.

Template_Tags/wp_get_linksbyname