[Koha] importing items through csv to marc problem

Hi All, I got a perl script at: http://lists.katipo.co.nz/public/koha/2007-November/012750.html it is used to import biblio details from csv format to koha through marc. after some modification it starrted working for me *with a* *serious problem *. I am able to import biblio and biblioitems details but items details are duplicating. as per now in mapping i used only barcode , homebranch,holdingbranch from item table, so it is dublicating three times with each field in a different row. but actually it should come in a single row. can any body help me out. Best, Sujit.