Reading your post I wish I could wave a magic wand to solve your problem, but here are the harsh facts.
Even with a good co- signer you dont qualify having title in your name, having bad credit is same as having no credit, even if you saved up a few bucks your only choice will be a buy here pay here type dealer, " interest rates will outlast your investment " if you take that route its 90% the vehicle will end up being scrap and you will still owe thousands, dont fall into this trap like thousand of other consumers.
Here are 2 suggestions
start building your credit with a secure credit card and if you follow the steps insde 2 years you may qualify for some type of loan without high interest or a co - signer, study this web page how to get the ball rolling
http://www.usedcartips.org/CREDI.html
As for getting wheels till such time you have established - buy the least expensive your pocket book can afford. $ 1000 to $ 1500. ???
While its buyers beware its possible to get valid value, the Internet or Auto trader is not the places to look for vehicles in this price range.
Shop you local community newspaper along with supermarket billboards you may just get lucky someone just having posted a vehicle in excellent condition that's no longer needed.
Buying from a dealer in this price range the odds are against you, you must have patience and when you find a car that you think fits the bill make sure you navigate to the Test Drive on the website and study how not to end up with a lemon.