[otrs] upgrade OTRS database from 1.3.2 to 2.2.4

Dear all, I'm moving my otrs 1.3.4 system to Version 2.2.4. How can I convert my old otrs data base in new scheme? Are they some programs somewhere to upgrade OTRS database from 1.3.2 to 2.2.4 Thanks in advance for your help. Best regards Denis JULIEN Responsable réseau/sécurité groupe EDITIS +33 1 49 59 10-34 +33 6 10 56 64 08 denis.julien@editis.com INTERFORUM 3 allée de la Seine Immeuble Paryseine 94854 IVRY sur SEINE FRANCE