Turn off Older comments?

Hi

We have a blog post here with 51 comments.

http://www.brinkzone.com/supplement-science/cee-the-poster-child-for-the-graveyard/

It seems to have stopped the comments at 50 and then makes an “older comments ” link, which for some reason does not work.

Not overly fussed about that as we would simply like all comments irrelevent of how many there are to be shown on the same page, can this be done ?

Any idea where to change the max limit it shows?