A Must Read Troubleshooting guide ..

i have been using this troubleshooting guide for a while right now and i believe its a must read for all biztalk developers, it covers sections about debugging orchestrations and monitoring the performance and lots more ...

you can find the link here ..

http://download.microsoft.com/download/3/7/6/376a6f6c-8c97-4ab5-9d5a-416c76793fbb/bts06developerstroubleshootingguide.doc

Enjoy Biztalking :)