did they give any more specifics on what the scripting error is? I will need to know the exact error to have an idea of what is wrong.
They should also be able to help with correcting the permissions problem. You may be able to correct the permission problem in Dreamweaver.
In the files panel, change the View Dropdown to remote view.
Select the file that has the permission issue and, right click on it and select Set Permissions. Select read Write and execute permissions for all users.