Yes, apparently some Eclipse 3.4 configurations are missing the Capabilities section for some reason. You can follow the steps below in this case. It ends up starting the old 3.3 - style installation at step 8.
1. Start Eclipse, choose "Help / Software Updates"
2. In the "Software Updates and Add-ons" dialog, choose the "Available Software:" tab and click on the "Add site..." button
3. In the "Add site" dialog Click on the "Archive ..." button
4. In the "Repository archive" dialog navigate to the "C:\Program Files\Curl Corporation\Surge\7\ide\eclipse-deploy\cdeUpdateSite.jar" file, choose the file and click "Open"
5. In the "Add site" dialog click ok
6. In the "Software Updates and Add-ons" dialog check the box labeled "jar:file:"C:\Program Files\Curl Corporation\Surge\7\ide\eclipse-deploy"
7. Click "Install ..."
8. You will get "Unsupported Install" dialog. check the "Launch..." button
9. In the "Install/Update" dialog click on the "Search for new features to install" radio button and then click "Next"
10. In the "Install" directory click on the "New Archived Site..." navigate to the "cdeUpdateSite.jar" you found in step 4 (it should open to that file automatically) .
11. Choose the "cdeUpdateSite" file and click "Open"
12. In the "Edit Local Site" dialog click the "OK" button.
13. In the "Install" directory click the "Finish" button
14. In the "Updates" dialog select the "cdeUpdateSite.jar" check box and click "Next >"
15. In the "Install" dialog select the "I accept the terms in this licnese agreement" (assuming you accept the terms) and click "Next" button
16. In the "Install" dialog click the "Finish" button
17. In the "Verification" dialog click the "Install All" button
18. in the "Install/Update" message box, click the "yes" button to restart Eclipse.
The Curl plugin is now installed!
Choose "Window / Open Perspective / Other..."; select Curl and click OK to open the Curl perspective.