The State can choose either to prove that you were under the influence of alcohol and it impaired your driving or that your BAC was .08 or greater while you were driving. It is doubtful that you will go to jail, but a good attorney can explain your options and the likely outcomes of your case. Most attorneys, including many of the ones listed here, offer free consultations. You should speak to one as soon as possible.
If you hire an attorney? Very small. If you don't? None. These are fairly serious charges, and there are several of them. They could have long term consequences for your license, your driving record and your criminal record. An attorney can help you minimize those consequences.
Contact an attorney who practices in Kankakee (or wherever the ticket was written). I used to live there, and most defense attorneys offer free consultations. They can give you an idea of the charges you are facing and the potential consequences.
A complaint is the formal method of charging any case. A DUI case may be brought either through a State's Attorney filing a complaint or by an officer writing a ticket. If the case is going to be upgraded, generally the State's Attorney will file a complaint that supersedes the ticket written by the officer.
It rarely hurts to have an attorney with you. Oftentimes a local attorney will be able to give you an idea of the quality of an offer made by the State, and he/she can help you understand the strength of the evidence against you. Some attorneys will handle cases like these for only a small fee, and most offer free consultations. Try calling some local criminal defense attorneys or using Avvo's Find a Lawyer feature.
You are facing a revocation of your probation and re-sentencing on the original crime as well as separate felony theft charge based on just the information you've provided here. In Illinois, a second theft-related charge is automatically a Class 4 felony (1-3 years), and, depending on the circumstances, you may be looking at a Class 3 (2-5 years) since the value was over $300. You need an attorney immediately.
This question doesn't add up. It makes very little sense that you were tried and convicted in absentia but not sentenced. If you were sentenced in absentia for what I presume would have been a 4th DUI, a jail sentence would have been mandatory and a no-bond warrant would have issued for your arrest. It may be that your sentencing hearing was stayed pending your arrest, but in that case an arrest warrant would have issued.
It's possible that some administrative mistake has kept you out of...
A suspension for DUI is the most serious type of suspension, and the consequences for driving while suspended for DUI are harsher. They include a mandatory 10 days or 240 hours of public service work. You will need an attorney to represent you on this case.
If you are charged with a DUI, you will need an attorney to handle the case. If you cannot afford an attorney you may qualify for a public defender. A public defender will typically not be able to handle license suspension issues, however. A good criminal defense attorney can do both. I'd recommend hiring one as soon as possible.