two questions about vote and photo

two questions about vote and photos.

I noticed only logged members can vote photos. Is it possibile to enable voting for guests (non-logged visitors)?

When you show photos by tag, tagged photos are displayed in chronological order (upload time). Is there a way to display the tagged photos by vote order? Example: in www.domain.com/photo/gallery_tag/tagname  I see the tagged photos in cronological order, can I display them by vote?

Thanks for your help.

1. All voting actions allowed only for logged members.

2. About changing order, yes, you can change it. This is in 'BxDolSharedMedia.php' .

thanks again