Its not error i think, its just a different format. I can try poking some old users, but not sure if anyone remembers =S
When i started fractaling 7 years ago, people were already using 2.09, and not 2.07, and havent opened even 2.09 for several years.
I dont think there is any error, maybe just some very old format.
Anyways, learning from newer tutorials is better, because you will not have those compatibility issues with pretty much every example and there are tons of new fancy techniques around ^^