What a nice idea.. it made me cry and I don't even know these people..

I think with a little organization, you could really make something out of this site..
Firstly, you need navigation bars on every page and have each new page open in the same window rather than opening another new page. You can do this, by double clicking the nav bar, going into properties and selecting self rather than _blank. Make sure what ever you repeat on subsequent pages is locked into the same place so that the transition will feel seamless.

With regards to your lightbox, you are getting distortion. You need to click variable rather than 90x90 or 120x120.. they will be different sizes, but they won't be distorted.

Good luck!