I just moved over to KDE 3.5 (the good old days) and was migrating everything over to Kontact (which includes Akregator) and decided it would be nice to import my Google Reader feeds into Akregator. I’ve compiled steps on how I did this myself.
1. Head over to Google Reader (http://google.com/reader/) and go to the “Import/Export” tab under your settings.
2. Click “Export your subscriptions as an OPML file” and then save it. Make sure to remember where you saved it.
3. Now go to the “File” menu in Akregator and click on “Import Feeds…” then find the .xml file you saved and click open.
4. Finally, enter the name you want that folder to have.
Now all you have to do is wait for the feeds to load and you are good to go!