What do you mean the bold's software? 4.6? The bold is a different model so the OS won't work on the curve, same as trying to put pearl OS on the curve.
Answer is no for 2 reasons. OS 4.6 is designed for the Bold
and not the Curve and all OS's are device specific.
As to finding info here, start with the Search function. If after
that you still can't find an answer or need clarification feel free
to post your question.
I think the 4.6 Browser is still much better than the 4.5 browser, though the 4.5 browser is slightly nicer than the 4.3 browser and much nicer than the 4.2 browser. As a CDMA guy, I didn't see much difference between 4.3 and 4.5, to tell you the truth. I just noticed the HTML email, Docs to go, and much better memory allocation.