I have a standard account with no password, then in the terminal it aksed for my password to install a program, I tried just ENTER and the adminstrators password but none worked, then I tried to create a password but I can't cause it says that the current password is wrong, but I haven't made a password yet! what's going on? Any ideas?
From my reading of your question it appears that you already have an administrator user on the machine, and you do know that user's password. From that administrator's account you added another user account, without setting a password for it. Now, when you log in as that second non-admin user, you can't install programs because it asks you for a password and you can't give it the password because you haven't set it. Is that right?
If I understood you right, then you need to do the following steps:
log in as your original administartor user.
in console, type
sudo passwd myotheruser
to give the myotheruser account permissions to install software, you can add it to admin group (again, while logged in as the original administrator user):
sudo usermod -G admin myotheruser
After that your myotheruser account will be able to use sudo commands, install software and will have essentially the same privileges as your original administrator account.
