Custom Wordpress Plugin - Object/Page Caching

I currently run a very popular blog (100,000+ pageviews/day) on Wordpress 1.5.2 and need a custom object/page caching system plugin, that's more robust than: [login to view URL] Meaning, all those features found in that plugin above must be included + additional features for reducing queries and server load. I currently use [login to view URL] on my blog, but it only caches pages in Internet Explorer, it still generates the dynamic version in FireFox/Mozilla browsers, causing extreme load on the server during peak traffic times due to excessive httpd requests. 1) Must have a custom administrator page, with editable options 2) You must have extreme knowledge of object/page cache systems and provide previous examples of work done in this area 3) Cache system must work in IE, Mozilla, Opera, and Safari browsers 4) Cache is only flushed when I approve/delete comments (currently comments are all sent to moderation before appearing on the page), edit/publish/delete posts + pages, edit templates, etc. Basically only when I update the site. 5) Even under heavy traffic, I should not see dozens of httpd requests, with this new plugin enabled 5) Database queries must be fully optimized for maximum efficiency 6) I need to see the plugin working on my site in all browsers, before paying the full amount Terms: All deliverables must be ready to go before the deadline(s) for this project...with no exceptions. If this contract makes it impossible for a competent person to do this, then do not start this project...but instead alert GetAFreeLancer of an un-arbitratable, illegal project. 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).