I have a couple of questions
We have a one question per thread rule. Please start new threads for your other questions, if the following short answers doesn't help you.
any way I can change the header links for guest accounts? I would like to them to only have an upload and home link.
That's possible with the file
theme.php. Create different output by checking if the constant
USER_ID is 0 (= guest). Please read the docs and the theme board how to do that, as it has been asked and answered many times before how to add/remove menu buttons.
any way I can set guest account's default upload folder, rather then having them choose it from the drop down menu.
Nobody can choose the folder, but only the album he/she can upload to. If you want them to upload to just one album, set the permissions accordingly.
Please mark this thread as resolved by hitting the little icon in the initial post.