Need help please.. Jagged edges / Perfect Circle?

[X-Newbie]

I have an image that has jagged edges and I want to make it a perfect circle. Is there an elliptical Marquee tool or setting that I can do this in Xtreme 3.2?

I am also trying to make it look like a 3D orb? Is there a special setting so I can make this vectored instead of creating it in PhotoShop?

[handrawn]

Hi

first point - use intersect [ctrl-3] between circle with no fill and image - to get perfect circle hold down ctrl key whilst using the shape tool

second point - not sure what youre after - what sort of vector?

[masque]

Quick and simple sphere example.
If you take it apart you will see whats what. It can be elaborated on with further highlights or different texture fill etc.
Derek

[X-Newbie]

I should clarify more and I am sorry for that.. The creation is a puzzle that I am making into a sphere. It needs to look similar to this.. I have created the puzzle pieces in Adobe Illustrator. Then I imported them into Xtreme for the final work. I prefer Extreme now over AI, but I can work faster in certain cases in it.

EDITED by Egg: iStock photo removed (copyright) You can view it by clicking HERE

[masque]

You could try arranging your puzzle pieces and then using a circular envelope on them as the very quick example attached. Then overlay onto sphere.
The jpeg is using layers of text laid out in a square block and deformed with the circular envelope in much the same way as with your puzzle pieces.