JavaScript timer error message Add To Cart Button

Hi Guys,
I am trying to create a ecart product page, but when I insert "add to cart button" I receive this message:
While executing timer in WA ecart addToCart.htm a javascript error occurred.
I already uninstalled the extension, deleted the cache file, download again the last version, reinstalled it, but it didn't solve the problem.
I cant go ahead.
My system:
Windows 7
Dreamweaver 8
Ecart 4.5.2
Thanks

Dreamweaver 8 is not a supported version of Dreamweaver, we are not able to offer support for Dreamweaver 8.

One thing to double check is that you are running the 8.0.2 update for Dreamweaver that is available from the Adobe website.

When I purchased a SuperSuite extensions in 2007. The version of Dreamweaver that I have used was Dreamweaver MX 2004 and 8. Why cant I use it anymore?
Which Dreamweaver Version can I use with my extensions?

I think you misunderstood. It's not that you cant use DW8 with the extensions, it's that DW 8 has been replaced by newer versions of DW and we cant offer support for it, nor will Adobe.

That being said, did you read my other comment?

Have you installed the 8.0.2 update for DW 8?

eCart 4 was never compatible with DW 8.0.0, you need to install the 8.0.2 update if you have not already.