Smarty Error: [in Tpl_body:21 Line 21]: I Keep Having Problems Using Jquery + Smarty On My Site. Keep Getting "syntax Error" From Smarty?

I keep having problems using jquery + smarty on my site. keep getting "syntax error" from Smarty? - smarty error: [in tpl_body:21 line 21]:

When trying to jQuery script, [and in some cases, are running a JavaScript] errors, how do I get

"Fatal error: Smarty: [home.tpl.html line 3]: syntax error: unrecognized tag: / / Enable"

shop in the script (use) the free version and tryin to implement many of the characteristics of jQuery on my site.

Suggestions why almost all of the scripts is from mistakes fata?

Note - Lightbox v2.0 works fine! .. which is a bit confusing really makin me fight.