Btw, don't take it like TGPX is only for coding experts. They do provide you with a template builder for galleries. Just fill in the form, and the script will generate your code. For the rest, TGPX got a very, very, very detailled user manual (unlike ST). Everything TGPX is capable of doing is written down there. The manual is very structured so you can just select what you're looking after, and just right to the page you need. The TGPX installation also comes with an "example" map, filled with quite some text files showing how things are done.
Everyone can easily learn to work with it, just compared to ST you have to do a bit more reading and templating. But if you want to learn, you'll learn fast
If you require additional installation help (installing the script on your servers and configuring the general settings) then I'm willing to do this for free if you signed up under my referral link. Please note that this does not include setting up your final and public tgp templates. But even if you require help with that, I can help you out for a very small fee.