Welcome JSM,
It's good to see another person join the ranks of the pen weilding society...or maybe it's a bad thing because I have more competition...
I agree with a few others when I say that you should tidy up your grammar. I'll second Gillhoughly's recommendation of the 'Elements of Style.' I do have a copy with me for reference.
To get started, try writing without the aim of being published, but just writing. When you start, every sentence doesn't have to be perfect. Just start writing what comes to your head. As you continue, you'll hone your skills. Also, read a lot; It helps a lot.