RE: Report Writer GP2010 Picture - Picture Resource not found for Report
We have found that a restart of GP often resolves this matter. Not sure if you did this or not - but when ever we add 'custom' text or graphics, we always restart GP and do not encounter this error.
In addition, if you are editing the report on a different workstation from the one that you are trying to test the printing feature, we have found that you often need to be out of RW before the 'save' fully takes effect and that other workstations - users - can see the change.
I am assuming that the security for the report is already modified and that is not the cause of the problem.
Let me know if this helps.