Why is the "Original Version" page from my website not accessible and I can't restore it either..?

Permalink
OK, so I am obviously new at this Concrete5 stuff however I followed the Editors Guide on the above subject matter and still cannot bring back some changes I made today on one page..?  I only have two versions of it the one from today and the original.
Thanks if anyone can help me out I clicked on the original but the Approve does not show up in bold on the top menu options!  It does for the version I edited today though.
Thanks, Claude