Ok guys I decided to post this but this is not to defraud anyone out of anything please if you like what you see buy it...
Here is the Schematics of a Datalogging cable:
DEMO Datalogger SW can be found here:
http://www.pocketlogger.com/PLDemo09.zip
I believe a crack for the demo is here.
http://www.pilotwarez.com/
Now I have not tried any of this (no really) I know the crack works but I'm not sure if it works against that demo you may need an unregistered full copy of the SW where you would get that I don't know don't ask me.
I have not built this cable yet I just found the diagram. Nor do I know if it works with Pocketlogger I assume its a 1 cable does all affair but you never know. I may pickup the parts this week and let you know if it works. But please the guys at pocketlogger are just small guys trying to earn a living buy their SW its good and really isn't THAT expensive and to program works very well.
Jason if you find this unappropriate I'm sorry you can delete it I thought I better post it in here to minimize the damage.