The episode lists for Futurama after season 5 are messed up.
The last 4 episodes listed in season 5 actually belong to season 6. Each episode has 4 parts.
Episodes 1-13 listed in season 6 belong to Season 7.
Episodes 14-26 listed in Season 6 belong to Season 8
Episodes 1-13 listed in Season 7 belong to Season 9
Episodes 14-26 listed in Season 7 belong to Season 10
Episodes 1-10 listed in Season 8 belong to Season 11
I have listed them in order with airdates below.
Season 6
Benders Big Score Part 1 (Ep 1) March 23, 2008