Okay Thanks for all your suggestions
Don't get me wrong i much prefer to run outdoors,I only wanted to do the treadmill run to prove i could do 5k and to post the time etc.But anyway as it was a nice day I've done my final run in and around Ryton Pools Country Park and it was great!
I know i can do it now as i carried on a bit today and ran a full 5k in around 40 minutes. I'm still going to use the gym at night or when weather is bad. But i am also signed up for the local parkrun and i'm hoping to do it next Saturday. Now I've graduated i want to carry on as i am enjoying this running lark!