hey troy,
no worries - we'll get everything sorted
here's how you can replicate what I did:
1) login to your joomla backend and move to extensions/template manager
2) click on the template you're using (yoo sync), not the style:
http://screencast.com/t/717HyBnB
3) now you see a list of files and folders. first click on the folder css (right at the top) and then inside that folder click on the custom.css file
http://screencast.com/t/EAcmBxEr7
4) once you clicked on this file you'll see an editor with all the content of the file. at the last line you'll see my added style with the increased font-size for the ES stream title.
as you see that this file is working fine feel free to put your other styles in there as well.
note: usually it's much easier to edit the file with a real editor and not messing around inside joomla, but as said I have no ftp details so now at least you know how to access it this way and know the right file to edit
hope that helps and have a nice day