You need to follow this guide and it works fine.
I found I had to type the dropbox address into the web broswer as I couldn't cut and paste it, took me a couple of goes to type it right. ES File Explorer is in that link as well. Once its done just open the Dolphin Brower from the apps menu and...
Its fairly easy, you have to download ES file explorer then dolphin browser hd and then flash. There are plenty of online demos, I'll try and remember to post a link in the morning.
No sky player yet, might take a while for that I think.