serafanas

Hi all, one of my programmers upgraded old Presta 1.4.7 to 1.6.1 and we are facing quite a few bugs, that weren't showing themselves at 1.6. Is it possible to downgrade without huge time investment? We have all 1.4.7 backups, so if it is easier to go 1.4.7 -> 1.6.0 way - this is the I am prefering to go. Thanks for any ideas