Hey Mark,
I am a little lost here as to what you are trying to achieve here now. Are you trying to use Gravatar for avatars in Komento or are you trying to use EasyBlog's avatar for avatars in Komento?
I have actually configure the avatars for Komento to use EasyBlog's avatar because you mentioned earlier that you wanted to configure it to use avatars from EasyBlog in your post here,
http://stackideas.com/forums/i-am-having-a-profile-issue-and-a-like-issue#reply-209717 .
As for the "likes", are you liking as a guest, normal registered user or super administrator? If you are trying to like as a public user, you need to configure the ACL for Komento integrations with EasyBlog here,
https://site.org/administrator/index.php?option=com_komento&view=acl&component=com_easyblog . Click on the "Public" group and ensure that the option highlighted here,
http://screencast.com/t/alG507xMRM is enabled.
P/S: Replace site.org with your domain.