1.5.1 (101) Few Question in English

I'm From Indonesia, wants to ask something about secure web / pwAdmin
1. how to decrypt passsword using base64code, dor see real password
2. how to secure / limit IP access for pwAdmin/ iweb
3. How to limit amount of cuby
4. how to delete amount cuby on player
I'm sorry if it bothers you this question
for the attention I would like to thank

I can be wrong, but to limit access for iweb you should edit file ".htaccess" in iweb's root
Third question I don't understand, but it has two answers: If you want to limit cuby after register, you should edit register file (usualy register.php or reg.php), but if you want to limit max possible number of cuby, you should edit GS (but i can be wrong again)
To delete amount cuby on player\account you must go on PhpMyAdmin and edit boxes in 'usecashnow'

1. Why you need it?
2.htacces/local folder
3. 2 147 483 648
4. Give gold with 'minus' before amount