iOS Coverflow images set out of order

I have made coverflow using openFlowView in my iPad application. My images comes through webservice and I have set it in Array in proper index. And Using asynchronous images I am setting the images on coverflow. All done successfully but there is one problem that my images set out of order on coverflow means first images will put sometime at 3rd position sometime at 4 and same for other images too. I want to put my images in proper order sequentially on coverflow. Please anyone can help me for this problem. I am quite stuck in this situation.

Thank you for your reply. but still I could not get the proper solution for it what to do further.

Is there any way to load asynchronous image sequentially one by one...

Thanks for your reply But I have used iCarlouse also, OpenFlowview of Faj too but problem is not coverflow, problem is set multiple image sequentially on coverflow when it is downloaded asynchronously through webservice...If you have still any option to recommend me to do so...Thanks anyways..

Thanks but I didn't get your point exactly... How can I define state in asynchronous image loading..Can you please give me any example?

coverflow images set out of order in begining

Hi,
In coverflow, images loaded successfully. To load images i have used NSOperationQueue but if I press again to load images on coverflow at the same time when previous loading also loading the image. So in new coverflow some last of the old images of previous loaded images come in new coverflow image at begining. I have released NSOperation queue already but still won't find its solution. Anyone have any idea. Thanks in advance.