Am I to interpret the tone of your post to say you've found something usable in the xmls?
There's a lot of stuff that looks good and promising, but nothing stays. You can affect items you purchase in the shop, but if you try to use them, the game refreshes, for example.
You can change dealpool's price to 90cp, but if you buy him, the game refreshes. My hope if that others will experiment, and share.
Yeap i have been exprimenting with it, reduced the price of eiso and turned off the squirrel girl lock , as soon as i went to buy her ( keeping the breakpoint on) a message is being forwarded to playdom server with some kinda error and if i let it execute, it refreshes the game. Also same thing with EISO, i bought one of price 20 which i reduced to 15 or sth like that and when the game refreshes , they deducted the rest 5 gold from my account so i think those values are server sided and even when you change them, they need confirmation from that side and if not matched it will force you to refresh .
To those of you still struggling on how to use the hack or if its working or not, try haenawolfs second script which seems to work fine without any issue. And if you want an alternative way and can get used to charles, then try dolce panna's tutorial.