Could you please give us the following details to specify the problem:
1. Exact browser version.
2. Exact RadEditor version.
3. Steps to reproduce the problem.
4. End result.
5. Describe what is wrong with the result.
Also, I would recommend that you use the RadEditor Flash manager dialog. It inserts flash files in the editor's content area and uploads new flash files, which will be available for inserting.
Thanks for your cooperation in advance.
the Telerik team