Paulos,
I'm not seeing the tags, HTML, or anything in the content of your site that would indicate those modules should be appearing. Can you tell me how you inserted them? Are you using the {JLinkedShare} tag or the Share module, for instance? If the module, can you make sure it's enabled, in a proper template position, and set to show "On all" menu items?
Something strange is going on, but it seems like the widgets just aren't configured to show at all on those pages.
Thanks,
Alex