Just out of curiousity, why would you want to convert from ch7 to ch13? I would rather wipe out my debt than have to pay any of them back. The ch7 stays on your report for 8-10 years, the ch13 stays on for a tad less.
And just curious, when you "settled," you debt. Did you settle for less? If so, do you realize you will need to pay taxes on the "forgiven," amount. They will send you a "1099," so if you originally owed lets say $5000 on on credit card and they agreed to let you pay 1/2 $2500, than you will owe taxes on $2500 on the forgiven amount.
Catchmeifyoucan