Update for RegLevel
It has come to our attention that some users of RegLevel have been experiencing issues creating and saving their redirects. Thanks to Keith Bieneman of Subway Tile we’ve been able to isolate and fix the bug. We’ve also identified a potential problem with users of WordPress version 2.7.1. We’re using a few newer escape functions to protect your admin pages from Javascript injection – unfortunately these functions were introduced in WordPress 2.8.
Since anything earlier than WordPress 2.8.4 is considered insecure, we’ve decided to tighten our upgrade restrictions. RegLevel users must now upgrade to at least WordPress 2.8 to use the plug-in. We apologize for any inconvenience this may cause, and if you absolutely need to use an older version of the system, please contact us and let us know. We’ll do what we can to help.

Hi Eric
I’m test up to 3.0 and work! When you compatible to 3.0?
Thanks
Since 3.0 is still in Beta stages I haven’t published a fully compatible version yet. However, you can expect to see one in the coming weeks as 3.0 begins to coalesce into a release candidate (once all the bugs are worked out and we know how everything will work). There’s also been some talk about removing the user role system entirely in a future version of WordPress. As that talk continues, it will have serious implications for the future of RegLevel. In the short-term, though, you can probably expect an update by next month.