Ask him do not donate money there but buy them new clothes, shoes, sweaters, blankets, etc and run a few days feeding program. Children will be happy with sweets and oranges.

When I was in ktm, I volunteered through Sewa foundation in assistance with Mike Cassidy from Philadelphia, Pennsylvania. He visits Nepal every year from Oct-Nov and do social service there.

Here is the link to his myspace:

http://vids.myspace.com/index.cfm?fuseaction=vids.channel&vanity=mikenepal