[Typo3] ImageMagick - Quick Question

[A-san]

Ok, I did what Mark said... I am not sure what is supposed to happen if 
it works correctly.

Can someone tell me how I should find out if the program is worked 
correctly?  Also, is there some guide on how I can use IM with Typo3? 
For example its features, tools, etc.  I hear there is a feature that 
makes scaled down images look better, more crisp?  For example, the 
image in my homepage:
www.stratcommandcenter.com/redesign

Is there a way to make that image look better quality, more crisp?

Thanks!