When I try to change the height using the html codes given above I am getting an error message on the front page.
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING, expecting ')' in xxx/tabs.php on line 64
I tried to use the following code;
'thumbnail_link' => 'yes'
(not just the code I included the full code. The plugin was working with fine with the previous version this came up when I updated.)