Your registration in the ColorValet Client went through just fine.
The target gets printed when you click the “Print RGB Target” button in section “3. Target(s).” Clicking that will open up the usual printer driver, and you would use the same settings that you normally use to print your work (same dpi, media type, etc.) - except that you make sure to turn off color management, as you mentioned.
If you don’t see that link, it’s probably because the “Printer Setup Complete” button was not clicked in the previous step. See screenshot: http://www.colorwiki.com/wiki/Image:Printer_Setup_Complete.jpg
Go back and click that at the end of step 2, and then go forward to step 3 and you should now be able to see the four buttons that allow you to print or save RGB or CMYK targets.
The whole idea when making the target is that we want to be able to capture what your printer is doing - and then we make a profile that reflects that. So you want the printer to be in good shape, no nozzles clogged for example, and you want to go through your regular workflow. For instance if you normally run at a lower dpi or if you choose high speed printing, then print the target the same way.