Making filtering buttons vertical in the filterable portfolio module

I want the filterable portfolio in my site (http://bit.ly/1A7adyM) to display like this: http://tinypic.com/view.php?pic=2554aia&s=8#.VMu7ZBa9Gt9

The filtering links should be vertically stacked on the left side rather than above the filterable portfolio grid like now.

Is this achievable? or can someone suggest me a plugin?

Thanks!