I have tried to establish new credit and keep getting declined

I have had the same score now for the past 3 years. It is a 493. I have tried to establish new credit and keep getting declined. I have an auto payment that is in my sisters name that i have been paying on for over a year now. I brought receipts in to show them that i was the one making the payments and on time, they said it was not good enough. Because it would not show in my credit report. Any suggestions? I also received a copy of my credit report and alot of stuff on there was duplicates and were sold to different collection agencies. I disputed them and received a letter back from the credit bureu stating that the were validated and proved to be mine. Even after i stated they were dupilcates. I am wanting to purchase a new home with in 6 months is there anything i can do to jump my score up quickly. I have just received a secured credit card as you suggested. But that will only show 1 line of credit.
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and it will take one year to be a rated line of credit
that i dare say it your largest problemthe card reports to bureaus and is not a buy from a catalogue only card i hope for your sake\if they do report to a bureau and it is a catalogue car d keep it anyway for one year.
there are some new places on the internet that will take manual credit submissions.
but i do not think it will help with conventional mortgages as they only use
the big 3 transunion, equifax, experian here is a list i found http://finance.groups.yahoo.com/group/credit-repair/database?method=reportRows&tbl=1i would suggest going asking the board this same question
tell them bo sent you
they know how to deal with collections and duplicates, and i believe they might be of some help with these credit repair on yahoo groups
credit lawyer dole out free help here maybe they can do something for you

Denied credit for a 30 days late on my credit report.

your web page about bad credit. I was 30 days late (1st time on 4 year car loan) and when I noticed by the next month I paid both months at once. I called the finance company to see if they could remove it from my credit report and they put my on hold for a few minutes. They came back and said that they could not because it was a law that automatically kicks past 30 day accounts out to the creditors. Sounded like bologna to me but was wondering what to do to get this removed. I could pay off car in full if this would help remove it. My husband's business had been denied credit I feel due to this problem. What do you think and can you help me? Any info would be appreciated.
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in 24 months the lates will not affect your credit.
sounds like you have done all you can do as far as removing it
i know you can go back after 24 months and ask because many credit cards and lenders only report the past 24 months activity.
sometimes crditors will allow one months grace per year. you might ask for that. one months grace.

one thing would be to pay it off and make sure the account would not hurt you in two years