Mostly, yes. But do you have idea, that several of them like wizardofodds.info are not so frequently to use as this one is?
No, these can't be printed or downloaded online. If you haven't received a form you can go the state Employment Department website and use the contact section to find someone who will tell you how to get the form, or you may find the information on the site itself.
You need to go to the Illinois employment security department and follow the links to get the information you need. If you can't find it on the site, you can get a phone number from the Contacts section and ask for help directly.
Most Illinois claims can be made online. You could have a look at the department'swebsite and try to download one there - if that doesn't have what you want, there is also a contact phone number so you can call and ask them what you should do next.