While many commercial Zencart templates look very snazzy and professional, you need to understand that the underlying technology may have been significantly modified to achieve certain effects.
This is not necessarily a "bad" thing... Zencart is OpenSource - meaning that anyone has the right to modify it in any way they feel... as long as they:-
- acknowledge the rights of the original creators
- do not make commercial gain by selling the core functional code. (creating templates is akin to design consultancy, which is perfectly legitimate to sell).
However, as many commercial templates are very heavily customised, their code and structure often departs significantly from the zencart original code and structure. This makes them very difficult to integrate with other zencart modules...
... what do I mean here?
Let's say you went ahead and installed a TemplateMonster (TM) template over a fresh ZC installation. It makes your site LOOK very pretty, but now you want to add other features and modules.
You will find that many add-ons will not function with a TM template, and may even conflict so badly that your store's functionality is wrecked. This is because code files for the template that need to interface with the Add-on are so different in structure.
ALL the free Add-ons you see on this site are designed to comply with the default code structure.
Unfortunately, many people spend a lot of money on a commercial template, and then discover their expensive mistakes when they try to add more features and their site collapses around them.
They then come to the forum, desperate for help and salvation, but the ability of forum members to help is limited - because most people do not use these highly customized templates.
If you have excellent PHP and CSS skills, and know the zencart core software inside-out, then the problem is somewhat eased if you use a customised template (such as TM).
Novice users should seriously avoid MOST commercial templates and consider using one of the free templates available on this site. Later, when your zc skills have improved, you may be able to look at commercial templates and make a better assessment about their suitability and reliability.