Eh.
Both this and the first one are really mediocre and kinda lame.... I didn't really find anything worth watching in the first one. It just wasn't funny. The highlight of that one was the Donnie Darko reference. The second one was really boring as well. The way that they walked was very strange. (I'll talk more about that below) On the comedy side, the ending was fairly nice, though Frank got a bit annoying. I did like that last line. It made me smile. I was also impressed with the eyebrow. I guess it just looked clean to me. :)
So, some suggestions to help you out:
Like I said, the walk cycle was really awkward and bizarre. If you need help with walking, try "Walking Cycle for Dummies" by un-mediocre and "How to Animate Walking" by Stew_Ped, both of which can be found in the Flash Tutorials collection. I found the first VERY helpful, but the second one is good, too.
Also, I would suggest adding a 'play' button at the beginning and a 'replay' button at the end. It's always nice when the viewer is doing something else at the same time to just let them take their time and view the movie when they're ready.
Finally, the voices. If you don't have a microphone, try asking some of your friends or fellow flash artists to record the dialogue. The text-to-speech thing was really annoying and monotonous, so it'd make it a lot more interesting if you had something a little more lively. :)
Good luck and happy animating!