dds questions

Im runing the latest 1.98 but cannot seem to load dds. Is there a specification that the dds should be, as i notice in DDS converter2.1 theres many options for:
S3 or Nvidia
DXT1c, DXT1a, DXT3, DXT5
Mipmaps ON/OFF
Filter (Box, triangle, quadratic cubic...)
Alpha ON/OFF (Got this part)
Dithering On/Off (i guess this is to force 16bit?)
Fast Compress On/Off

Which do i use because i cant seem to get one loaded at all, either when in a model or using loadtex.

DXT1,DXT3,DXT5 working fine on my machine, exported trough nVidia DDS exporter for Photoshop...never had any issue with it..only issue I had is when I turned on Mip Map, so it seems that my lightmap was screwed up...but then I just turn it off and let blitz do his stuff regarding mip mapping..so its fine..for textures with alpha I'm using DXT5 with interpolated alpha and its also working great..

Are you sure you are running 1.98
In the Blitz3d Ide click on help menu and then about to
make sure it says 1.9
If it doesn't then the patch may have been extracted to
a directory in your blitz3d directory. Mine had gone to
H:\Blitz3d\Blitz3d