“older” – “newer” tabs on main page not working :(

Not sure how this works but the “older” ….. “newer” tabs at the top of the main page do not work properly.

The mian page loads properly but if you click older it finds nothing and then if you click newer to go back it can’t even find the first page.

I’m not using a static home page – just the latest posts.

Any help……please ?

Site – http://www.ozpoker.net.au