Grab the .rar files from PSUMods and place them into PHANTASYSTARONLINE2\pso2_bin\data\win32 and extract. If your friend wants to use the patch without using Tweaker; they will need to look up the .bat file method. It's easy to find and do but the negative is that opening up the official launcher will usually force a file check.
That and no item translation patch but some of us that use this method don't really care about it anyways since you'll get used to the names of things.