I have 4 images
img1-150x150.jpg (thubm)
img1-3000x300.jpg (small - make wordpress)
img1-1024x768.jpg (middle - make wordpress)
img1.jpg (original)

By default loading img1.jpg
I want load img1-1024x768.jpg

How i can change plugin?
Maybe in 201 line solution -
<a href="' . $this->getImageLink($_post->ID, $linktype, $_post->post_parent) . '"' . $_addcss . $_addrel . '>

Please help