Here are a few links to pages of fellow amigos with photos, blogs, and reports of their treks:
The photos of their trek in April/May 2010.
The travel blog and photos of their trek in August 2009.
The blog and photos (in Dutch) their trek in early 2008.
Steve's very detailed and highly informative Huayhuash trek report (in English).
Photos of our holiday in Peru July-August 2006.