Links and formatting not showing in posts

For some reason the new theme i am using does not show up words which are bolded or highlight where there are internal and external links - Can anybody help me fix this? I am sure it should be an easy fix.

Here is a couple of examples:

http://footballbettingguide.net/premier-league-weekend-preview-15122012/

http://footballbettingguide.net/premier-league-preview-man-utd-v-sunderland/

Also, images don't seem to be centering despite showing like that on the admin side.

Thanks
Jon