I am having a hard time working out what I need to do to solve my problem with custom templates and files and I need someone to put me back on the right track....please!!!!!

I am making changes to files and uploading them and nothing is happening.

What I cannot get my head around is how, if I make a folder called "custom" and slot it in say includes/languages/CUSTOM/english how is the program supposed to "find" it when it has been moved???


I am sure this is a lot simpler than I am making it but I am really very confused.
I recognise it is not a good thing to edit the "core files" because of future upgrades but I dont understand how the template overriddes work.

I have tried on a numerous occasions to work out how to add a custom template and right now I have 3 templates in my admin.

one called "custom" which when previewed results in this error
cart/includes/templates/custom/images/scr_template_default.jpg

one called "newfiles" which when previewed, results in this error
cart/includes/templates/newfiles/images

and the default template which is now called MY classic contemporary green. I do remember adding the word "my" when I was trying to "clone" the classic green template so I could edit that without touching the original as per a suggestion from someone on the forum.

Right now I have custom folders added to different folders EVERYWHERE and 3 custom templates of which only one works (the one that was there already) and I don't know how to delete the faulty ones and I am getting increasingly frustrated.

Can anyone explain the concept to me in easier terms than I am reading so I can find the files I need, makes the changes, upload them back to the correct folder while NOT changing any of the existing files??????

It's a minefield to me and my head hurts :)

Thanks in advance.