Mmmh... can't remember... Is that when you're asked to donate ?
If yes I think it should be your main password. That said, the function usualy works even if you don't donate.
I don't wanna try right now with my last crappy post as Steemit seems to be slow enough without spoiling its ressources, but I'll check when I'll have something worth it :)
It doesn't seem to give me an option of not donating. Thanks for all your help, you're a star for being so patient with the techno challenged ;)
Actually, if you reach the donation page, you've already done the resteem thing. Just browse back or close the tab if you want to skip the donation part. After a few minutes you should get a message from resteemable as an answer to your post.
And well... Being patient with people having trouble with computers is what I'm actually paid for when I don't try being an artist. Still a pleasure doing it out of daily job's boring context ;)