Oh, it must a a Java version that's only available in Norway for the moment.
Looks like you were right:
http://help.opera.com/operamini/1.0/en/install.html-----
Help » Installing Opera Mini
Opera Mini is offered to operators and mobile content providers worldwide, and not as a download from opera.com.
Opera Mini is available in Norway through TV2, and may be downloaded for free by sending an SMS with "Opera" to 1984. This will only work in Norway.
You should be sent a text message in response (this may take up to one hour). Some phones will also receive a bookmark. Open the bookmark, and if your phone is able to run Opera Mini, you should be offered a link to download it.
If your phone does not support bookmarks you can use the link provided in the text message. Either click the link, or open the address in your phone's Internet browser (WAP).
Follow the instructions to download and install Opera Mini. You will be sent a configuration message that should set up your phone to connect to the Internet.
Once Opera Mini is installed, you may be offered the option to open it. If you are not offered this option, you will need to locate it using your phone's menu system.
Your phone may display a message telling you to ensure you have set up an Internet connection or GPRS access point before using Opera Mini. If you have not yet set up a connection, you should do so now.
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More at:
http://www.opera.com/products/mobile/operamini/faq/