Well, I think I can help you get started!
There are so many things you can do to customize your device. I suggest you start by installing and trying different apps to try to familarize yourself with what is out there. Here is a link to a thread here that has some great stuff in it:
http://forum.ppcgeeks.com/showthread.php?t=65874
I suggest you read through the stickied threads in this Forum to introduce yourself to some beginner custom mods and then work your way into the Vogue Upgrades Forum where you can learn about advanced mods like unlocking and flashing custom roms or maybe building your own rom. There really is a wealth of information here. Don't be afraid to ask specific questions about your device in this forum. There are a lot of helpful members here that will gladly help. Good Luck !!!