upload module

I got frustrated with files uploaded via the Upload module being assigned seemingly random MIME types, depending on the client that originally uploaded the file. So I made a little utility module -- http://drupal.org/project/filemime -- that may be useful for anyone using the Upload module. It rewrites the MIME type for each file upload based on a server-side mime.types file and/or custom settings.

It hasn't been heavily tested yet so please file an issue if you find any..

Help needed from drupal experts...
In the upload section of the node, i just want to provide the single listing option instead of multiple listing.

I just changed the property of list field from 'checkbox' to 'radio' in the upload module but that doesnot seems to be working properly.

Can you please suggest me something?

Thanks,
Sumoanand