GIMP Help! Options

[Infiniti]

Hello, I have 2 questions for GIMP. ^-^

1. Whenever I brush, the main picture that is on the canvas turns grey, and nothing else happens. :(
2. How do I make things transparent in GIMP?

Pic of problem #1

[dinoooRAWR]

Hello, I have 2 questions for GIMP. ^-^

1. Whenever I brush, the main picture that is on the canvas turns grey, and nothing else happens. :(
2. How do I make things transparent in GIMP?

Pic of problem #1

1. you want it a different color or something ?
2. { cliiccck }