Dear Steve,
I apologize for not getting back to you sooner.
We apparently had a real issue on our forum and some posts simply were not visible for us.
Our developers are currently fixing this issue and this should not happen again.
I hope this didn't create a problem for you
Back to you with answer as,
If you didn't get the solution yet,
1. Go to root/templates/socialize/css
2. Add a file named custom.css
3. Override any style that you are expecting [it will not affect even after upgrading the socialize template with latest version]
Thanks