Hi ruty,
The default templates for
RadMenuItem reserve space for Icon on the left side. If you want to place it on the right side you have to edit the templates and modify them according to your specific needs.
Editing templates can be easily done in Blend 2 (drop RadMenuItem instance, right click it and select
Edit Control Template).
Let us know if you need more help.
Kind regards,
Hristo
the Telerik team