I am in the process of raising my credit score now. I have worked on it for the past 3 months or so and I am pretty excited about doing it. But the first thing I can tell you is that if you do not have patience you will not be able to do it.
I have listened to many different CD and read forums and these are the things that I have come up with:
1) GET ALL 3 CREDIT REPORTS FIRST!!!
2) 3 credit cards with under 30% utilization on each
3) remove derogatory information from report
4) Start with collections and judgements
5) Then remove late payments but don't remove everything cause a long credit history is vital
But if you really need help buy the 3 reports with Suze Orman's kit associated with the web site.
But go ahead and start and you should see an improvement within a year and you will be so excited when you go to the mail box and get those letters stating that incorrect things have been deleted