Just to put together what I now so far. Please fill the baps if there are any.
- You use the Extended Read Permission Plugin
- Configured a user in Hudson. Do you use "Hudson's own user database" than or something else?
- The plugin description says it adds a column to the "Matrix-based security" or "Project-based Matrix Authorization Strategy" authorization stream. Do you use one of these two?
Now I am getting confused about what you are missing for an Admin. I use the "Project-based Matrix Authorization Strategy". When I am configured only with the global administration permission. I have full control over Hudson and all jobs running on Hudson.
To be able to help you, please describe you setup as it pertains to the authorization settings in detail. Do you have other plugins installed that might interfere here?