I didn't want to just read and not reply. My ds does not have dyslexia (perhaps some other issue?), but my dh and
every male in his family has dyslexia. We thought for sure that ds would have it too, but instead he is reading way above grade level for kindergarten.
But I have been preparing for the likelihood that he would be dyslexic from the time he was a little baby. This is not a reading curriculum, by any means, but I wanted to recommend the book
Overcoming Dyslexia
. This was such an eye-opening book for me, my husband, and my mother-in-law (who went back to school to get a master's degree in learning disabilities because all three of her boys had dyslexia). It's been a while since I read it, but I distinctly remember a section in which the author describes the features of reading programs that are successful in helping dyslexic students.
Another take-home message for me was understanding that dyslexia is mostly a "disorder" (if you will) of phonological processing and
not a visual processing issue (although there are many folks who are diagnosed with dyslexia who have some difficulty with visual processing and some folks who have both concurrently - so it's not totally clear-cut). Anyway, I did a TON of phonological awareness activities with ds from the time he could speak. There are some really good phonics programs out there, but many don't put enough emphasis on this area to help students with dyslexia.
My dh is still not a very good speller, but he is a doctor with
excellent test scores (academic and boards), a Regent scholar who attended medical school on a full academic scholarship, and all-around brilliant guy.

Of the three brothers, he is the youngest and most successful academically and professionally. He attributes much of his success to being able to work at his own pace, especially in elementary school (when he went to a private school that worked especially with LD kids), but also in middle and high school where he was given accommodations (mostly just extra time to complete assignments and take tests). I think that giving your son lots of consistent practice, but low-pressure, is a really important part of helping him to cope with his reading frustrations.
Anyway, I hope you end up finding the resources that will help your son.