I can't comment on photos or save photos to 'My Photos' page
If you're unable to comment on others photos and/or having trouble saving your photos to your 'My Photos' page, make sure you've verified your email. You can check as soon as you login to your BeFunky account. You'll get a notification on the top saying 'Please Verify your e-mail address'
If there isn't an option to verify your email, you most likely already did this (we send out an email when you initially sign up, and if you can't find it, please check your spam folder).