Insert a right tab with leader dots at your right margin. Type your TOC info, type a tab, then type your page number. Hey presto!
Tab formatting is set under Format > Tabs in Word 2003. (You didn’t say what version you have.) You can also simply set your right tab and then double-click it to add the leader dots.
-Highlight your page of items
-Go to Format -> Tabs
-Select the horizontal measurement of how far you want the tab/etc
-Select what character you want in between
-OK out and tab where you want the sapce
Word will do this automatically, so that spacing when changing fonts or adding to length is never a problem.
Document Elements => Table of Contents => Options => Formats
Classic, Modern, and Formal all automatically add periods between the words and the page numbers.
That’s looking at it from a Mac in Word 2011. It should be the same in PC Word 2010. All earlier versions had this, but I don’t know the exact path any more. Just go to Help for formatting a ToC.