My son was 4 at dx, and we did a sticker chart too. We called it the "Good Shot" chart. A "good shot" was when he came to us when called without a fuss and stood still. We did not require him not to complain, cry, or hate it! We just focused on safety issues. After so many stickers, he got a treat...special time with mommy or daddy, trip to the dollar store..etc.
Happily, we did not use the chart for very long! We phased it out easily.
Good luck with whatever you choose. This will pass!
Mom to Rachel, 13 yrs old; Joey, 10 yrs old; Daniel, 8 yrs old, dx 9/08 (One Touch Ping, 11/09) and dx ADHD 12/10
Aunt to adult nieces Samantha, dx at 2 yrs old; and Abby, dx at age 25 [/COLOR]