Can I use alternate controllers for Rock Band on my PS3? (i.e, my guitar-hero controllers) [duplicate]

Possible Duplicate:
Do Guitar Hero peripherals work with Rock Band and vice versa?

Subject pretty much says it all. I've got PS3 + Rock Band, and would like to use Guitar-hero controllers. Are there adapters? Can I hack them, somehow?

Similarly, can I make my own controllers? Are there sites with good DIY instructions? By "make", I mean from scratch; I think I can figure out "buy a guitar, take it apart, put the bits into different plastics..."

Solution 1:

Most work ... but not all.

• I think wired had the best compatibility chart.
• Mods can become an obsession ... imho, doc's forum is the best

Solution 2:

What would you need an adapter for? If the Guitar Hero controllers are designed for the PS3, just plug them in and use them in Rock Band.