A brand new 1.3.7 version !

I've just installed a brand new version of the ZC 1.3.7 and I want to upgrade to ZC 1.3.8, so my question is, because I don't have any files in the old version to worry about, I don't know what is the easiest and faster way to do the upgrade! Any advice?

Yeah just delete it and install the 1.3.8 I have done a file by file upgrade way before 1.3.0.2 and its a huge pain. A fresh install is way faster and easier.

That's why I'm asking that, because I already did what are saying and it didn't work with me, :cry:
http://www.zen-cart.com/forum/showthread.php?t=82510

You need to solve the problem that caused you to start that other thread. The help you were getting was moving towards a fairly common problem that people sometimes have with .htaccess files. If that's right, upgrading will just be a longer way of getting to the same broken site.

so, what do you suggest ? Because I did everything they asked me to do from removing the dote from .htaccess to checking the roots, can I just upgrade this version and finish the case ?

As discussion of your installation issues is continuing in that other thread, it doesn't make sense to also discuss them here.