Based on what i remembered, you can just leave that referrer column empty. (But if a yaoiotaku member introduced you to the site, you can fill the column with their username).
And about the manga you've download, the files are mostly in jpeg/png, so just your usual image viewer app is enough. However, you still need to extract the zip/rar file first.
But then again, it's been so long since i visited the site, so things probably change.
Sorry English is not my first language so I apologize if I confused you. Good luck!
hey guys. I amm trying too register on yaoiotaku.. but a term comes.. referrer.. how do I fill that?? and after registration when I download the links do I need any app to view the manangas I download??