how to set the IKImageBrowserView with variable cell sizes?

I am developing a tool which will allows the user to import the video clips and make the movie from those video clips.

To represent the imported video clips i have created the

IKImageBrowserView

and add the frameimage of the videoclip as a Thumbnail image. up to here everything is working.

But now i wanted to display the thumbnail image size based on the video clip duration. i.e each and every thumbnail image have the different size based on the duration. (i wanted to show the thumbnail image width going to be changed based on the duration of the video clip.

If i use

[imageBrowser setCellSize:];

then it will affect all the thumbnail sizes. but i wanted to apply different size for each and every thumbnail.

Can anybody help me to solve this problem?

if

IKImageBrowserView

is not the best suitable for my problem then please suggest me the best control to solve my problem.

Thanks,

Muthulingam