There's no specific writeup but it should be similar to the ALH engine writeup in the mk4 FAQ. The main difference is that the turbo and intake-exhaust manifolds are different.
Also look at the mk5 timing belt writeup.
If you want to take pictures and document what's beyond the timing belt writeup, feel free to do so. There's a writeup contest for new step by step pictorials, current prize is $50 e-gift certificate to kermatdi.com, why not help others if you're already doing it? If not, a few pics could also help.
VW TDI forum, Audi, Porsche, and Chevy Cruze Diesel forum
A forum community dedicated to Audi, Volkswagen, Porsche, and all turbo diesel owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, TDI, maintenance, and more!