Answering in your manner does not help.. Kecked is actually spot on with his advice to you. You will be better off buying a new projector.
That said, everything is possible. Changing the module you have for a more powerful can be done, but a 500mw green module are probably way to large to fit inside your projector. Blue diode modules are much smaller and might be a way if power is the important goal. Bare in mind that blue lasers must be 3-4 times as powerful to give the same light effect as green laser. Your 100mw green will probably look brighter than a 500mw blue.
No you can not just change the diode in your 532nm module. It will require a new driver crystals cooling etc.
Please read as much as you can in previous threads here, and then you will hopefully realise that Kecked was spot on in his answer to you.
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More projects than time available.
More projects started than finished.
More money spent than earned.
More failure than success.
Just got to love lasers!