What to do with info

I also posted under another topic on the boards, but since we have major concerns re: college applications, I thought I'd post here, also.

Our daughter was just diagnosed (Dec 06) with ADHD/Inattentive type by a private psychologist ~ NOTHING us documented at her private school. This diagnosis certainly explains A LOT of things that have kept us scratching our heads!! She is in her 2nd semester, senior year of high school. She was Gifted identified by the school district in 6th grade (Torrence 99%), but until now has been labeled by all ~ teachers, counselors, and yes, her parents ~ as a gifted underachiever. The psych testing for ADHD showed her WAIS-III IQ as 123, but the W-J III shows predominately average scores (meaning her scores are far below her mental ablilty). Her SAT is 1150, ACT of 26... both respectable. She's had NO AP classes, and her GPA is a dismal 2.5.

When she is applying to colleges/universities, and writing the essays, should any of this be addressed? It's not like she can hide from the obvious discrepancies in performance (mostly Honors classes with C grades).... yet you're supposed to NOT mention any negatives in these essays.

Any suggestions?

Any advice?