Can I upgrade my 3.52m33 applecor themed psp to 3.71m33?

Yeah just as the topic title says. My psp is currently running on 3.52m33 firmware and has the applecor theme installed. I've sorta been wanting to upgrade to 3.71m33 but I'm not sure whether I'm even able to.

So does anyone know if I can just upgrade like normal without screwing up the theme or bricking my psp?

I've tried the applecor theme on 3.71m33 before (it requires a different method), but its not as good. The fonts overlap onto the icons and it overall just doesnt look quite as good since the font remains the same.

When you upgrade, you lose all your theme settings. themes still there but not implemented. Applecor tested on 3.71 m33-4 and fully working (source:afterdawn) link here http://forums.afterdawn.com/thread_view.cfm/608823