Sadly there was very little sewing advice in there. But we do get to have a look at the pattern for Wembley's head, which is rather useful!
Have a look through the Fraggle Rock subforum; there's a post about sewing patterns for Fraggle toys, with links to scanned patterns.
Perhaps you could be a bit more specific about what you need help with?
(I'm not a puppet builder, yet, just browsing because I'd also like to make my own Fraggle puppet sometime...)