In terms of this, you are quite simply missing the files. Its nothing related to 3rd party or your PHP version. Its simply that the image files are not present.
In this case, the egg. If you are looking to upgrade you would need to change the PHP version, then upgrade the site. But you would need to upgrade the site by uploading a fresh set of files, and running the upgrader.
I have to be honest with you on that part, Jeff. I would get assistance in upgrading your site in my opinion. You are simply struggling too much with these, and its very likely you are going to end up back in the same scenario prior to getting it online.
This is one whereby the advice would only be to upgrade your site to the latest release first of all.
I very much sympathize with your situation there, Jeff. The reality is here, you probably need someone to help you run the site and its administration, if you are unable to go with the cloud options.