Tmpgenc plus will not recognise sound track on some divx movies

I am trying to convert a Divx avi movie file to mpeg 1 but tmpgenc will not recognise the audio track the movie plays no problem in a Divx player I have tried just about every codec package on the go Ace, Nimo, DivX, Gordionknott, ect still no joy
Any Ideas

FOR STARTER’S CODEC PACK ARE CRAP KAZAA LITE CODEC PACK IS ABOUT THE BEST IF YOU GO THAT ROUTE.
DID YOU TRY CONVERT THE SOUND USING VIRTUAL DUB THE 44100Hz FOR VCD OR 48000Hz FOR SVCD

The way i get around that problem is to decode the audio using a program called avi-vcd(available on Kazaa) .......then Tmpgenc will recognise it.

Uninstall all codec packs, especially Nimo and install the codecs that are needed.

Install:
- 3ivX (http://www.3ivx.com/download/index.html) - decodes both DivX and XviD.
- Moonlight Odio Dekoda 1.23 (http://www.movieking.co.uk/files/index.php?action=file&id=5) - decodes both AC3 and MP3 audio.

All remnants/left-overs of old codec packs must be uninstalled before installing 3ivX and the Moonlight Oido Dekoda 1.23.

Once everything’s done open TMPGEnc Plus and go to: Option>Environmental setting>VFAPI plug-in tab>right-click 'DirectShow Multimedia File Reader' and raise (click Higher priority) it until it’s a 2 or 4. Click OK.

Now try re-encoding the DivX (AVI) files to MPEG1.

Thanks to all helpfull sugestions they are all filed and saved
I have however solved the problem at last. so for anyone else that is having a similar problem I installed Nero 6 Ultra plus NeroVision Express 2 downlowded all the patches that Ahead try to get you to pay for from Kazzaa and the following site http://cracks.thebugs.ws/
This did the Bizz

TMPGEnc Plus is a program primarily for encoding to MPEG1/2 etc. It does high quality conversions, much higher quality than Nero can do. Also there are problems with Nero that may be encountered in the future (i.e. - upside-down picture after re-encoding from an XviD-AVI source etc). Please be aware that these problems can occur and can be attributed to Nero. If any problems happen, TMPGEnc can be used to re-encode the AVI to MPEG1/2, then burn as normal with Nero.