At the Merchant in Alker Harbor, last page of her items. She sells Enchant Scrolls (Weapon/Armor/Accessory) and Enchant Protection Scrolls (Same kind for all). First, look at you weapon's level. Let's say it is level 50. So you go to her and you look for lvl 40- blah. As long as your weapon level is lvl 40-Said level it will work. You buy the enchant scroll and press 'S', then go to the third tab "Actions" then you see all of these Icons. Second row, third icon from the right is 'Enchant', press it. Then a little window will pop up with a scroll outlined and a weapon outlined. Place your weapon in the weapon slot and enchant scroll in the scroll slot. Then press "Okay" after you weapon is +1, you must then go buy 'Enchant Protections Scrolls' (be sure these are yet again the same level range of the weapon/armor/accessory). Then double click the Enchant Protect and you will see the same little window pop up. Place your item/enchant scroll in the same slots and enchant. Do not worry if you fail, just keep at it till your equipment is +7. BE SURE TO USE A PROTECT SCROLL OR YOUR ITEM WILL DESTROY WHEN FAILED!!