Two years ago I asked an agency to build me an OpenCart webshop, since I was totally unfamiliar with webdevelopment. This webshop is doing alright, but I want to improve it: SEO and the looks by means of a new template.
This time I don't want to outsource making this webshop, I want to do it myself.
Can anyone tell me which specific steps I should take in updating my old webshop? When I only upload a new version of OpenCart and a compatible template this probably will not do the trick, right? I know there is some VQmod manager installed by the developing agency, how should I deal with that? And should I consider other modules or files and where can I find those?
Thank you so much for your replies!