In case you missed it, the site for donations is here:
http://www.justgiving.com/dreamflight2008
Just read some of the memories from here:
http://www.dreamflight.org/memories.htm
Such as:
"...the trip has definitely helped him. Since he has been back, he's been a different boy. He has had a lot of problems since he had his brain tumour last year and has been very depressed and withdrawn at times, but since he has been back we have seen a definite improvement and it's great to see. He can't stop talking about the trip..."