I got in touch with Lord of the Rings and asked him to come to our assistance and fortunately he was good enough to do as I requested. He has vastly more experience than me at solving these problems so I am really thankful that he came to your assistance when I asked. There is not much more i can think of to help you so hopefully the steps LOR has outlined will help you to get your problems sorted. I note that he has also recommended that you use the offline installer version for your java RTE. So if you have already downloaded it you can use that to carry out one of the steps he advised.
Good luck in the future.