1, After creating the character for the first time, the money is 1000gp.
Where can I change the amount?
2. Which file will I change the first access to after I create the character?
account.cs, I don't know if I don't know.
Not my script but I didn't see it already present here. You shouldn't have to do anything but drop this into your Customs folder and restart.
Type [calt to switch from staff to player and back. It will let you see the shard and play as a player would experience it for quick troubleshooting...