bgb, sorry you have yet another set of challenges to see your ds through, but you'll get there and he'll be a-ok. Even though it feels like you've been hit in the stomach right now, it's a *really* good thing you've had the evaluations and discovered the CAPD etc now while he's still young!
I'm sorry I don't have much practical advice right now, but getting a handle on how to move forward is a really important thing, as reading demands will ramp up significantly as your ds moves to middle school.
Hang in there!
polarbear