I have never done this before and i am just trying to block one of my pages from being seen. Have done it right i think, but thought i would check before i block my entire site by accident lol.
User-Agent: *
Disallow: /Forum/webpage.php
The page is not in the root its in the forum directory and just the one page, is that the correct ?
Also will this show up in webmaster tools as ive seen the robots section on there ?
If you have an account in webmaster tools, you'll eventually see a list of pages googlebot wanted to crawl, but was blocked by robots.txt for. In the meantime, they have a checker tool.