manage conference -> Assign reviews tab not show all entries

We are using this wonderful Conference Module 6.x-1.2-beta2.

Under Manage conference -> Assign reviews tab it shows only 25 items. We have over 200 items.

How do I get to list all the items under the 'Assign reviews' tabs? Clicking the 'Date' sort by kind of helps but not very helpful as we would like to view them all. Is there a place where i can modify this?

Thank you.

~UK