Using imagebrowser and show next thumbnail

Dear users,

Im trying to get a custom imagebrowser.
http://i49.tinypic.com/2wn7fp2.jpg
(The link includes a preview)

Ive been searching and tried a lot off functions but didnt work.

Does someone know how I can get the thumbnail for the next of previous image using [imagebrowser]?

Greetings,
Stefan

ps. sorry for my english!

http://wordpress.org/extend/plugins/nextgen-gallery/