Just google opifico font, and you will come across it.
To replace icons, you need either filebox or to use ssh. ( You will also need rootsh insatlled) Then navigate to /usr/share/themes/your-theme-name/images/wmTaskLauncherIcon
rename your icon to wmTaskLauncherIcon an replace the original one (backup originals first)
As for queen beecon widget, power search for "qbw for noobs" thread, and this will help you to use it. I have to go to work now, so don't have the time to explain, but the thread is worth reading to get to learn queen beecon. It's one of the best things on this phone, and is very powerful.