Happy, just click on the thumbs up or thumbs down symbols on the right hand side of the post you want to rate and a ratings box should pop up. Inside that box there will be a drop down box that has a +1 symbol in it. If you click on arrow at the side of the drop down box you will be able to change the rep rating anywhere from 1 to 5, whichever number you want. Then just go down to the bottom of the the pop up box and click the 'rate' button. Hopefully that will do it, although I had to have 2 attempts when I rated someone the other day. I haven't made any ratings since then, so I don't know if it is working first go yet or not. People are getting ratings so it must be. If it doesn't work for you the first time, just persist and do it again.
By the way, congrats on getting an avatar up!
Thanks Flip
Ok so this was what was happening
I push the thumbs up button and I have a little box save post When I then push save post I get a broken line border around the thumb and then nothing else happens and when i click on the button nothing happens (whether i left or right click )