You gain points once every day (50 right? whatever, I don't really stay for the downloads...the forum keeps me here >.<) it updates at midnight or something..
50 points per night, downloads over 50MB cost points (1MB = 1 point). You can earn extra points by uploading game screenshots (15 points per approved screenshot, make sure you read the instructions on the add screenshot page to ensure they have the best chance of being approved.) You can also buy points for a donation of at least $5 (must be a single transaction of $5 or more), which will give you an additional 10,000 points, or you can become a premium member for $15 per 2 months, which gives you, among other benefits, 150 points a night instead of 50.
Screenshots are worth 15 points now No wonder my points are a little off. I uploaded several screenshots of NES games recently because I want to level off my points to be divisible by fifty (by 100s or 50s), but I was surprise to find them now ending either in 20s or 70's, oh well I guess I'll need to upload two more photos then