IE6 error – SHARETHIS is undefined

I installed the ShareThis plugin which if you dont know, puts a green icon link at the bottom of each post to enable people to share the post via email or various services like Digg..

The plugin displays fine at home on my Vista IE7.

I get to work and in my IE6 browser I get the “done, but with errors on page” error. I double click to see what the error says:

Line: 165
Char: 1
Error: “SHARETHIS” is undefined
Code: 0
URL: (my url)

Someone else has this plugin on their blog and I don’t get the error in my browser.

Why am I getting this error? Anyone else see the error?

My site is https://www.insectmacrophotography.com