match custom fields

hi
i big thumbs to you for developing this plugin
i liked this plugin very much because its has custom field feature
but i am trying to match custom fields but its not working .
name email field is populating fine on aweber subscriber detail
but i have two another fields .subject and message
see this is what i am giving under form settings in aweber tab
[your-name] name
[your-email] email
[your-subject] custom-subject
[your-message] custom-message

i am getting name and email
but not getting subject and message
can you please look on this and let me know how we can match the subject and message