As far as I can tell I am good to go. I noticed you had a couple more CEP tlk files then me, but that doesn't seem to be my issue. My ravenloft_1_95.tlk was 8.09 MB, which I assume is equal to yours as it was in KB. I installed this on a new computer, updated NWN, installed the cep 2.4a I needed which was listened in the 'downloads' section of the homepage of this website. I also DL'd the Ravenloft hakpak and even the music package. I missing anything, or perhaps do not have the newest something?
** By good to go I meant my files matched up, not that I can get IG yet. Still having the same issue.