Was that one of those people who posted a vague, ill-defined question and then ignored all requests for clarification?

It's not actually that difficult: the master starts everything by pulling the line low; the state of the line after that initial low period (~5us, I think) is the value of the bit being read/written.

If you have a storage scope, debugging is a doddle as there's no timing restrictions between the bits - so you can stop your code & examine the previous pulse for as long as you like!

The example code from App Note 126 works straight out of the tin:
http://pdfserv.maxim-ic.com/arpdf/AppNotes/app126.pdf
be sure you have the PDF version - there's an out-of-date HTML version on the CD.