Firstly uninstall completely the existing version of idm then install this http://adf.ly/1E9HXE (its the 6.23 build 2 version of idm), then download these two files of crack by clicking these two links http://adf.ly/1E5yUv, http://adf.ly/1E5vQI. After installing just paste these two files in installed directory. Have fun........
