Elgg Skins/Templates?

I am looking to use Elgg for my organization's online community. There are things about Elgg I am definitely drawn to. However, I'm not finding navigating things inside here very logical or organized. Which leads me to my question... I want to know if it's possible with Elgg to a) visually customize Elgg to match our own site's design and b) move things around so that they make more sense to us navigationally?

I would really love to view sites that have completely customized Elgg visually and navigationally, but am not having any luck finding any discussions or groups on this. Can you point me in the right direction? Please do share your site addresses of your customized Elgg sites if you have any.

Thanks in advance!