I encountered this message since I upgraded my wordpress to 2.8.2.  Adsense Deluxe is producing permission notification! Just a tiny info, Adsense deluxe is a wordpress plugin designed for Google Adsense , this plugin allows me to manage and put adsense code or javascript code anywhere in my post or template. I'm also using this plugin for my affiliate link so when I want to change the campaign I will just modify the link in Adsense Deluxe Dashboard.

Pretty sure I'm not the only user of this plugin so I believe some folks out there are also facing the same issue. If for some unknown force they stumble on this page, I hope that this post will help them.

Here's how to get rid of the "You do not have sufficient permission to access this page" Adsense DeLuxe problem.

Step 1. Deactivate Adsense-Deluxe plugin.

Step 2. Edit the Adsense-Deluxe (Click "edit")

Step 3. Find the admin_head and change it to admin_menu

Step 4. Click "Update File" and then go to plugin to activate the Adsense Deluxe.

Update:

If after following the steps above you can't still edit your old adsense deluxe code, make sure that you move the adsense-deluxe.php from the sub-directory adsense-deluxe_wp_plugin_v0.8 to the plugins directory. Then delete the adsense-deluxe_wp_plugin_v0.8 directory and all of the contents. ( Thanks Carlo - detailed explanation for removing the old folder can be found here)

That's all. I thank you!