Image TVs are "static" by default, you don't need to make them static. All an image-type TV does is store the path to the image.Bur if I don't mark it as static, then I simply won't see the field where I can choose the pic file.
By defining it as a "static" TV, you're telling MODX to use the actual content of the file being pointed to, so it displays the binary code instead of just returning the path to the image.
If it's an image-type TV, then you will see the arrow to click to get the file browser. You can either use the whole "Filesystem" media source, or create a media source just for the images for your resources. You can also upload files from that file browser.Hmm... it may be the source of my troubles! Could you give me a screenshot where you choose the type of a TV -- will it be an image or not?
http://rtfm.modx.com/revolution/2.x/making-sites-with-modx/customizing-content/template-variables/template-variable-input-types#TemplateVariableInputTypes-ImageUnfortunately the screen I see when I'm adding a new TV looks a bit different. Maybe because my version is 2.2.14? I attach a part of the screen I see as a a picture here. To make all words understandable for this community, I translated all words into English and wrote them with red letters above the originals.
It's not all that much different. The Input Type dropdown is much the same. Just choose "image". Then assign the TV to the templates that your resources are using, and edit the resources. They'll now have the image TV like I showed.as you can see on the screenshot, I have already chosen "Image". I cannot assign the TV to my templates, after pressing "Save" I simple receive "Error!" Maybe it's because the TV is still almost empty? Anyhow the only dropdown to choose a picture I see only on the General Information tab. And if I choose it there, the result will be the same as I had before.