Sorry... I don't know about WP.
trikemailer... Mine embedded OK a while ago...
http://welwynhatfield.983918.n3.nabble.com/NOTE: Go to the outermost layer of your Nabble software.
This is what I did... Select Options > Embedding Options
Then... Copy and paste the coding onto your webpage
AND... Redirect Users..... as per Nabble instructions
Then... Save.
I notice that the heading above the coding is 'Javascript Code'...
I don't know anything about this, but you will need to have Javascript on your PC.
Actually, my PC is telling me that I need to upgrade my Javascript... but mine works OK without that, so I shan't do it...
Anne