What ver of WP did you update from ?
Does your server have the latest PHP protocol etc installed.. probably need to ask your server people this one? And then compare against WP 3.3 minimum req's etc.
I had no end of problems with updating and uploading until my server guy updated everything needed to latest versions.
"/httpdocs/uploads." why not put your uploads folder in the wp-content folder - this should look something like ..../public_html/wp-content/uploads to which the permissions can have a lesser restriction... maybe
Most of my problems with uploading things in WP in the past have been due to permissions and owner groups. These can be seen/noted using something like FileZilla and when i have the odd issue i go straight there to check and more often than not its to do with the DIR perms and owner. A quick email to my server guy fixes the owner group if i cant change the dir perms. for any reason myself etc
Hope any of this helps!