Imacros help?

Okay here's the problem:

I got a folder with all videos I want uploaded to YT. And I'm making a script which will go to http://upload.youtube.com/my_videos_upload, click on the yellow Upload video button and select a first video from folder. In next loop it'll again click on Upload and select next video from folder.

I'm stuck with video selection part, anybody has any idea how this could be done?

Thanks.

Nisam siguran da iMacros može to da odradi...