[Koha] Add item error

Hello all, I noticed in the archives that someone else has had this problem. I can add a MARC record, but when I try to add an item associated with it on my new 3.00.03 Koha install on Ubuntu 9.04 I get the following error: Can't call method "append_fields" on an undefined value at /usr/local/share/perl/5.10.0/MARC/File/SAX.pm line 92. at /usr/local/share/perl/5.10.0/MARC/File/SAX.pm line 92 Bug number 3520 was opened and a patch was made. My question is, How do I get and/or apply this patch? Sorry if this is a simple question. I am new to Koha and the set-up. Thanks in advance, Martin Martin Brenner Head Librarian Whitfield School 175 S Mason Rd St. Louis MO 63141