My PON's blood tests came back with good values (all normal blood levels), but I still feel nervous because he is a Senior and I know that most PONS don't live beyond 14 years.

As long as the blood tests were tested normal, you need not be nervous because you have a Senior PON. Why not join some PON Yahoo lists and exchange advice with fellow PON owners.

My PON has gone off his kibble and I even noticed that he spit out pieces of it during his dinner last night. What would you advise ?

You are strongly advised to join the PON Nutrition and Diet Yahoo list and inquire about new types of healthy dog food now on the market. Also consider doing a home cooked diet so you know the exact ingredients which are part of your PON's diet.

My PON cannot be shown in confirmation, but I would love to participate in other events. Do you have any suggestions ?

Consider doing therapy, agility, etc. Do your own independent online research for further details..

My PON has crust around his eyes and although I remove it every day, it keeps returning. What should I do ?

Parallel to consulting your vet, consider changing your PON's diet.