Help Trouble accessing Google Play.

[williamjkang]

so on my phone, i only have the Android market and i can't get it to update to Google Play. I've tried updating my phone, downloading an apk (every time i open it, it says "There is a problem parshing the package."), i don't have Google Books/Music and i can't download from the market. i've tried almost every way possible. my ASTRO is not working for some odd reason, when i open it, the screen is black and it force closes. so i really need help here.