for changing the logo, i see a post about changing an xml file and then there is a drop down in the Administrator settings to select a logo. When i click the dropdown, the YAF.net logo is available and the there is a blank text box. what would i put in the blank text box? i want to use the same logo AND favicon which i use for my site.

https://github.com/YAFNET/YAFNET/wiki/change-board-logo 

I hope that makes it clear, how to change the logo.

Regarding the Favicion, it is injected automatically. With the next update 2.31.13 the default DNN Favicion is used instead of the yaf icon