I have 2 questions that I will list below

1) Is it possible to change the settings on my site so that if I choose a logo for my site and the user clicks on that logo, it redirects them to a page that is not the home page? As an alternative to that, I will also ask, is it possible for the user to click on that logo and to have it not redirect them anywhere (i.e. clicking on the logo on any page does nothing and they remain on that same page)?

2) I am using the DarkKnight skin. I have tried uploading 2 files -- a .jpeg and a .png file -- and neither of them display in the top left corner properly. They have a red X in the top left corner and a link to my home page. Why doesn't the image show? How can I make the logo image appear?

Yes, for the second issue, these are the steps I have followed: Admin -> Site Settings -> Appearance -> Logo -> Choose the folder in the admin file manager where the logo image I want is located -> Choose the image I want to serve as my logo. Alternatively, I can upload a file from my computer instead of choosing one in the admin file manager.

Once I do this, inside the module beside the two logo dropdown boxes I have what appears to be an image with a red X in the top left hand corner. Also, when I go to any normal page on my site, in the top left hand corner, there is a red X with a link to my home page in it. The problem occurs with both .jpg and .png files.

Yes, but I believe I have the issue resolved now. Thanks anyways though!