Title option doesn't work

Hmm, it works here.
' [node:1477,title="Buzzword"] ' is used on http://www.rachaelandtom.info/node/1482

Did you previously have this in the page without the title attribute by any chance ?

Same problem here. I first created the node with no values set in the allowed parameters configuration, so it ignored my new title.
I then updated the config to include title for the node types I need.

But now every time I save my node I get this message:

ignoring param 'title' for guide as it is not valid. Possible values are ''.
The Page has been updated.
ignoring param 'title' for guide as it is not valid. Possible values are ''.

Which is wrong as I have explicitly added title for the node type guide in the settings, which is confirmed by looking in my db at the variable table:

link_node_allowed_vars_guide	s:5:"title";

And therein lies the bug...

you are checking like this:

$allowed_vars = explode(',', variable_get("attached_node_allowed_vars_$node->type", ""));

But the db is storing it as link_node_allowed_vars_$node->type

I can confirm that searching for "attached_node_allowed_vars_" and replacing it with "link_node_allowed_vars_" fixes the bug.

Ahh, good sport, the origins of link_node show up again, as does not being totally up to speed with the module API.
A new release is due shortly.