The TinyMCE button is working now with e-Commerce Plugin activated, now people using e-Commerce plugin can insert wpsc_category tag by clicking on the “cart” TinyMCE button. Here is a picture of how the button works. 
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AllenSplash
Wind Bamboo..
Hi i installed e commerce.But hw u activate the button? Please help.I tried to google it but cant fin the solution.
Try a newer version of e-Commerce shopping cart plugin.
Does it require a new version of Wordpress as well. I am using a 2.1 version and we-ecommerce, unfortunately I could not have the TinyMCE. Can you please advice?
I think so, I develop it on wordpress 2.3, I think you need to upgrade.
Sorry! Could you please let me know which versions of Wordpress and wp e-commerce you are using?Still seems to be a problem for me. Thanks a lot
The latest beta version, you can download it here, http://instinct.co.nz/e-commerce