@laurengrace, I found the “Other Options” was one of the menu choices for the NGG Gallery. From there find the “Styles” menu. Bottom left in that menu window for styles is a hyperlink that says “Customization Options” click on that then take the code that tizz offered up in his post and copy/paste at the bottom of the code that is shown. hit save and you should now have center aligned thumbnails.
Hope this helps. Worked for me.
This post was helpful. I had to make sure I had the right file. it helped to have the code shown above. I placed the “vote” code as shown and the voting started working. in order to change settings like the Stars to the Like/Unlike I had to use the ‘Clear image cache’ as described by shauno.
THANKS!