Im point out to you which blocks of code to edit for the spry messages and the server validation messages.
if you edit the server validation message, it will have no effect on the spry message.
you need to make sure you are editing the spry message.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.