Have you looked at Bruce's website? His Rentron Electronics site has some tutorials on using one wire devices, and explains it very well. He used the 18b20 in his examples, but I was able to get an 18s20 working after reading his explanations. I'm not where I can look it up, but I think the count remaining is a way of checking to see if the temperature conversion is completed or not, instead of just waiting a set amount of time like the 'pause' command does. So just pausing 750ms eliminates the need to check if the conversion is completed. Bruce also has an example that uses DIV32 to get better precision, but for my application anything within three degrees was close enough. Here is the link to the first example.

http://www.rentron.com/PicBasic/PBP1-wire.htm

Jerry.