Works very well, thank you! Here's a couple things I'd like to see:
When adding experience to a character, either have it not change the level so the game itself can do this or add the appropriate number of ability points/skill points/talents. eg if I add 5 levels worth of experience, have it add 5 level's worth of points to spend. Right now, you can add experience but the only benefit you get from it is the vitality, since it automatically adjusts your level but doesn't add the points you would receive.
Item editing is a little confusing for me. I figured out how to increase an item's level which seems to have a built in scale for damage range and whatnot, but adding abilities is a bit confusing. Sometimes what I pick doesn't show at all so I'm not sure if it works and doesn't show, or just didn't work at all.
Great job so far though, I haven't had any issues as far as errors etc while using it, and no broken saves!
The save does not actually capture your character level. Instead, the character level is determined by the experience. So by increasing the experience it increases the in-game level (and increasing a character's level actually means modifying their experience amount). I am considering adding a "Respec" type button that lets you reset attributes/talents/etc, based on your level, but until then this is a manual process.
Also, as for adding character abilities, if they do not show up make sure you have increased the character's skills to the appropriate level: for example, if you add a warrior skill to a mage, you may need to increase their Man-At-Arms level in order to make the skill appear.