MarsEdit blogging tool how to install browser bookmarklet

Hello,
this message is especially for people using the MarsEdit blogging application.
I am finding difficulties on an operation: installing the browser bookmarklet.
This extra-tool included in MarsEdit, is needed to have the ability to blog any web page; you find a nice poetry you want to blog and comment on, you just press "send to marsedit" from Safari's bookmark bar, and the MarsEdit app will open with a new post containing the page you were browsing.
But, there is a but.
When you go to marsedit's menu bar, then select marsedit, and Install browser bookmarklet, the web page opens, and it says: "drag send to marsedit link, to your bookmark bar".
The problem is that, I tried everything: vo+comma to start dragging, does not work; command+vo+shift+spacebar to hold mouse button down, does not work too.
Does someone have some ideas? I also tried to save the page to bookmarks normally, but it saved the page with the explanation but not the link.
I do not really know what to do - even because there are many sites which use this trick and do not know how to manage it.
Let me know, thanks for all.