Identification: Help on what kind of tree this is?

Hello all. Need help on what kind of tree this is? Its not doing to good so i need to know what it is so i know what it likes soil,sun,water ect. Thanks for any help.

 

Crassula ovatum or something close to it. Commonly called Jade plant. Harry

 

Looks like it could use a little more light and a bit larger pot, maybe 2". Here's some growing info.
http://faq.gardenweb.com/faq/lists/cacti/2002020340003484.html

Newt