@drupalina,
I got your point, actually i also faced this kind of situation, b...

@drupalina,
I got your point, actually i also faced this kind of situation, but none of the above solutions worked for me.
Are you using CCK in your form or created form programmatically..
I was using plupload in custom form i.e. form created programmatically rather than CCK forms
What i did was to disable ""Start upload" button and manage the file upload in form submit handler. When I submit the form I managed uploading files manually.