Things Developers Need
(links as soon as possible)
You must buy your Avatar Name
Join the Developer Program
Real Credits
The Previewer Program
(if you intend to make anything else besides stickers)
A good paint program
A decent Permanent Avatar Picture*
A Permanent Product Banner*
A permanent catalogue icon format*
(same background, border and small logo)
Permanent Catalogue page format*
(coding including background image, font face, font colour, and layout)
Basic understanding of HTML
Your HP while can be modified slightly should reflect your developer style.
*Once these things are created they should not change...people come to know you by these and should only change if there is a dire need...so take your time in designing them or seek help of those who are good at them.*