The "Any Browser" folks have had a few things to say about using browser-specific, non-degrading content. So has one of the original Netscape engineers.
Download it here. The source is released under terms of the GNU General Public License.
The other preposterous thing about AtomPark is that they're proposing to charge money for TagsLock -- some $500 for a site license, in fact. Hopefully no one has been foolish enough to take them up on it, but in a fit of pique I reimplemented the same algorithm, in two minutes. Here it is, yours to use under the GPL. If you feel some burning need to pay for software, send the money to EFF.
Don't put it on the web.
Electronic content control is a losing battle. If you display something on someone's computer screen, it can be copied. If you send something over the network it can be intercepted and copied. If you try to use the web's own techniques against it, someone will get annoyed work around it. Silly obfuscatory gyrations won't protect your content; they'll merely annoy legitimate users and amuse pirates.
The basic problem here is that obfuscators need ultimately to produce content in a form the user's browser can display expeditiously. Otherwise the content doesn't flow at all. Even "encrypted" content needs to include its own decrypt key, which defeats the purpose entirely.
I've noticed an inverse relationship between content protection and content value -- those who put the most energy into keeping people from copying the content tend to be protecting content that isn't worth copying in the first place.
Anyone who needed this tool to save copies of images being served up by your webserver is probably so incompetent you needn't worry about them. In TagsLock's case, all that's needed is to let the browser download the page and interpret the JS code, then disable JS, save the images, etc.
If you feel like keeping your email addresses from being harvested, I recommend URI encoding, HTML entity encoding and turing-test munging. Do not do this in a way that interferes with legitimate use of your web pages.
That is all.