I think you may need to enable a right-to-left language before you can do
this (this was the case in earlier versions, but I'm not certain in 2007),
but there are two checkboxes under Office Button > Word Options > Advanced
tab > Display section: "Left scroll bar", and "Show right ruler in Print
Layout view". If you check one of them, the other will check automatically
(that is, both or neither are enabled - fairly obviously, really).
AFAIK there is no way to have the horizontal ruler at the bottom (though
there are occasions where I could do with it).