Yeah, in the time since I posted that question I've upgraded from wp.com to wp.org. But stayed with the .com theme because, well, I just like it!

I didn't know about that Custom CSS Plugin. Handy.Thanks again :)

footer.entry-meta {
	border-top: 1px solid #eee;
	color: #8a8a8a;
	font-family: Verdana, sans-serif;
	font-size: 10px;
	font-size: 1rem;
	letter-spacing: 0.05em;
	line-height: 2.4em;
	padding: 1.2em 0 0;
	text-transform: uppercase;

}

To this:

footer.entry-meta {
	display: none;
}

Looks like you are using a theme made by WordPress.com developers on a WordPress.org blog. Normally those kinds of quetions should be answered at http://wordpress.org/support/ but I've answered here this time since Forever isn't in the WordPress.org directory yet.

Side note: I would recommend using the Custom CSS plugin if you aren't using it already.

I want to hide the tags on my post pages and on my homepage (where a preview of each post is shown).

I've got the CSS upgrade and have tried every bit of code I could find in these forums but nothing has worked.

Thanks!