Manual Excerpt Link Problem

Here is the shortcode am using. When I added the manual_excerpt_length parameter, it switched to creating an auto excerpt instead of just shortening the manual excerpt.

[netsposts include_blog=’664′ taxonomy_type=’category’ days=’0′ taxonomy=’unit-news’ titles_only=’false’ show_author=’false’ thumbnail=’true’ image_class=’align-left’ auto_excerpt=’false’ paginate=’true’ end_size=3 list=10 include_link_title=’true’ link_open_new_window=’true’ date_format=’F j, Y’ manual_excerpt_length=’50’ use_layout=’inline’]

The page I need help with: [log in to see the link]