There exist any forum plugin (so customers don't need another account)?

Hi guys! I have a site where I sell digital products (icons, wallpapers..) but now I want to add a place to let users post their screenshots to inspire others. I wanted to use my already installed Wordpress blog but don't let the user post images in their messages. So I was tempted to install any forum... but customers need to create another special account (people hate this process)... so.. my question is... it exist any forum that use the same database of users that Zencart? I'll keep searching but I want your advices. Thanks.

DArnaez:

Hi guys! I have a site where I sell digital products (icons, wallpapers..) but now I want to add a place to let users post their screenshots to inspire others. I wanted to use my already installed Wordpress blog but don't let the user post images in their messages. So I was tempted to install any forum... but customers need to create another special account (people hate this process)... so.. my question is... it exist any forum that use the same database of users that Zencart? I'll keep searching but I want your advices. Thanks.Why do you think you can't use WordPress for this???

Because they need to create a new account. I would like to have a forum only for my Zencart registered clients.

You could try the Bulletin Board Integration (http://www.zen-cart.com/showthread.php?204807-Zen-Cart-Bulletin-Board-Integration-Support-Thread) plugin.

DArnaez:

Because they need to create a new account. I would like to have a forum only for my Zencart registered clients.

This is true unless you were willing to commission someone to create the custom code required to synch WordPress and Zen Cart logins (yes this is doable).. The option lat9 suggested is a viable option for synching Zen Cart with several 3rd party forum apps..