Hi Deon.
Check in Config>File Settings and enure you have the "Read IPTC data from JPEG files" box ticked.
I'm no genius with Coppermine but if you use Photoshop or Lightroom then all 3 can be done at the same time for all pictures. Put all the pics you wish to upload into a seperate folder and in PS5 Bridge I "Selct All" and key in the keywords from the Keyword tab. Make any new keywords as you go. Coppermine gives you the opportunity to link files to other albums by giving each album its own keyword of your choice and I always use this/those keywords first.
Once you have done the keyword allocations, go to the Metadata tab and the left hand column should open in it's own metadata tab. On the main menu, choose Tools>Create Metadata Template. At the very top, give the template a name for this batch of photos. Under the "ITPC (IIM, Legacy)" heading, use the "Document Title" field for the title of your photos and "Description" field for the description for the photo's. Once done, click "Save".On the main menu click Edit>Select All. Again, on the main menu sect Tools>Replace Metadata> and choose the name you gave to the template. All the selected photos will now have the same IPTC data applied.
While still in the metadata tab, left hand column, you should be able to click on any of the photos and see the info. If it's not showing there, in Bridge choose Edit>Preferences>Metadata and scroll down to "ITPC (IIM, Legacy)" and tick the boxes for Document Title, Keywords and Descripton then "OK". You should see them now.
Batch upload them all to Cmine and you should find the fields you refer to above all completed. I know this works 100% for me with photoshop. I see no reason why this would not work with any software able to change the IPTC data. You will need to use the plugin Andre mentions for the keywords first though. I believe that there was some confusion over which IPTC piece of data was actually the one for the Title. Some have suggested it was the "Headline" field but I know for sure that it is the "Document Title" one.
The IPTC data also shows on the screen in your gallery if you click "Display File Information", see
http://www.denisg.co.uk/gallery/displayimage.php?album=lastup&cat=0&pid=3147#top_display_media and scroll down. Check the file name and description and you will see they are the same.
Hope this helps.
Denis.