what's wrong with these plants - jade and yucca

[lost_almost]

The jade is growing lopsided and the yucca was given to me in this state. What am I doing wrong and how can I fix it?

http://img.photobucket.com/albums/v195/meandering_icon/LJpics/jadeplant.jpg

http://img.photobucket.com/albums/v195/meandering_icon/LJpics/yucca.jpg