Dyspraxia, Dyslexia, OCD and Hyperactivity...help!

For issues related to specific conditions and disabilities.
My boyfriend has all of the above. He's highly intelligent, loving, caring and sweet but I don't know how to support him when he needs it. I'm disabled myself and do my best but I really don't understand what Dyspraxia is and any websites i've looked at have thrown a bundle of medical gobbledegook my way which makes little sense. He's perfectly capable of caring for himself but I know there are times when he's unable to sit still or he accidentally hurts me because he's concentration has slipped. How can I be more supportive and understanding when I don't fully understand whats wrong with him?

Can anyone link me to a site that can offer a human friendly explanation?
Although there are some differences between Dyspraxia and Asperger Syndrome, there are many similarities - try looking on the National Autistic Society website http://www.nas.org.uk, which has factsheets that you might find useful.