FS Traffic 2005 help

hi, I was wondering if anyone could help me..

I recently bought the FS traffic 2005 for FS2004 and it has all installed fine, however when starting FS2004, the new traffic is not shown, the original FS default traffic remains (e.g737-400 pacifica).

I used the Flyable Aircraft tool and traffic settings to 100% but it makes no differance, the traffic remains as the default. I have also re-installed it..but no luck…

My question is, is there any editing i need to use, and does anyone know how i can get the traffic to work??

Any suggestions much appreciated, thanks