your name can turn yellow in 2 ways..
1. donate $$ (duh!!!)
2. help fulfill requests but this needs 'skills'..
it is obvious that method 1 will get ya become yellow the fastest..
as for uploading content, NO your computer do NOT need to be open to anyone..all you have to do is to upload the video file to a filehost..here at ICE, we prefer either MU or 2shared as the IQS supports streaming from these file hosts..once your file is uploaded, you just post your links in the video section and admins will deal with them..
its pretty simple actually..look around the forums and see successful posts 1st..do not rush into doing smtg if you are not sure of..thats just my advice..
bdw, WELCOME TO ICEFILMS!!!