Display Question Images

hi everyone,

i recently started developing on the psp because i needed a project for the summer holidays.
i quiet used to c so its an easy problem.
i just cant seem to get solved.

my problem is that i display my image through

blitAlphaImageToScreen(0 ,0 ,32 , 32, screensaver, x, y);
flipscreen();
where screensaver is my image pointer.

because if i use pspDebugScreenClear() to try an clear the screen it doesnt clear the images i printed.
whereas it clears strings that i print perfectly.

so my question is, how can i clear the complete screen, or how to i diplay images properly?
and am i correct when is say that this function (blitAplhaImageToScreen()) draws the image on the background?

i excuse if this question has been asked before but i couldnt find anything to it.
thanks for your help in advance.

Lars

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