Hi Konakid,
I take my APP stitched tiff without a color profile into CS4, My original photos are with profile sRGB Nikon 4.0.0.3001. But when I'm done converting, it tells me my Color Space is RGB
You can add many colorprofiles (adobe RGB, sRGB, ProPhoto, device specific) to an image in a certain colorspace (RGB, CMYK, LAB), the colorprofile tells the editor (photoshop) how the colors of; in your case the recorder (DSLR probably); relate to the R,G,B values in RGB colorspace and that way rendering a correct image on your screen.
Check your color settings in Photoshop (command-shift-k on a Mac). In the 'Working Spaces' > 'RGB' you have to set your preferred colorspace, I use the Adobe RGB space because it gives me a bit more headroom for post-processing the image. Also, select 'Ask When Opening' for the 'Missing Profiles:' setting, this way PSD allows you to re-assign the original profile when an image is opened without a profile. Always pick the same profile as in the original images of the pano.
When you take sRGB jpg's into APG and render the resulting panorama, the sRGB profile gets stripped from the final rendered image. If you open the rendered image in Photoshop it will ask you to select a profile for this image. It's important to 'Assign' a profile and not convert to a profile. When the original profile is assigned to the image all the colors should be restored to their former glory.
When you work in adobe RGB or use a colorprofile other then sRGB, and you want to publish the image for the web it is best to convert the image to an sRGB profile before saving.
I hope this helps