hey, i could really do with a mod that makes you float when your on the surface of water, and stay in the place you put yourself when in the water, do you think you could make that?

Here's another sample script, one that makes you Float around and has a few chat commands:
http://pastebin.com/AWz8FebY

Here's a sample "Pogo" script to get you started:

http://pastebin.com/NQ9UrcTL