EDIT: Lovely Ben Ward has written an entertaining Hints Guide to Ben There, Dan That! If you're stuck, and want a spoiler-free ish general nudge in the right direction, have a read.
If you've already played the game, it's also worth a read because it's DAMNED funny.Someone has written a full
walkthrough for BTDT, you can find it
here.
I haven't had time to read it through and check it myself, yet, but it seems fairly comprehensive.
EDIT: Hello there! If you've just played Ben There, Dan That!, we'd love to know what you think. Please do sign up for an account and drop us some feedback in the sticky Feedback thread..
If you enjoyed it, we'd really appreciate it if you could show some support some how. Best thing ever is to make a donation via the game's page -- doesn't matter how little you donate, it all goes towards making more awesome games.
Failing that, do StumbleUpon us, Digg Us, link to us in your favourite forum, and become a fan on Facebook. The more links we have coming in, the better. Point people towards zombie-cow.com wherever you can.
Thanks! Hope you enjoyed the game. Stick around, it's awesome here.