Hello are there any instructions on how to upgrade to the latest version? I need a set by step if that's available. Thanks
The aMember upgrade should be in your admin panel. Simply follow the on screen prompts. WP sorry know nothing about it as do not use it,
Ok so the one thing it states that it will lose any customization, I know that some stuff was customized by support but I don't know what, where and how to make sure that this doesn't get lost?
Impossible to say if you don't know what customisations were made nobody on a forum can tell. You also give no indications of what the customisations were designed to achieve. Only support can tell you really.