I have found an answer to my own question :) Go Figure. For anyone who may come accross the same problem you can dfinitelt mix and match the lasterstudio versions and the jasper reportserver versions. What I had done is in the jasper server access configuration, under the advanced tab, clicked on the two dots and then selected MyReports which is the only option it gives you under the workspace location.And that is what the problem was. Just deleted the my reports from the box in the workspace selection and Voila, I can now open in editor from the repository again.... I hope someone finds this usefull