You have to check with your bankruptcy lawyer, just because your credit report show one thing it may not be correct. If you think this was in your bankruptcy check your paperwork and/or lawyer FIRST. Credit reports are notorious for being wrong and not updated correctly. I had to fix my own report-accounts that were in bankruptcy were not listed as such on my report a year later. I HAD to force them to fix it to reflect the bankruptcy. Many Dbs will buy bankrupt accounts and try to trick/force people to pay it, claiming "oh it wasnt in your bankruptcy". MAKE SURE first!!
Next, if the last payment was 11/05 then the clock started at your next missed payment so it is past Texas SOL-12/05 plus 4 years is 12/09, your 6 months passed it.