Looks like a genuine Vitus 979 frame but with added Colnago and Rossin ('R' on the fork) decals. Neither Colnago nor Rossin made bikes using these Vitus frames and this definitely isn't either. However...
Probably, to better get a realistic evaluation would be to post some additional closer-up pics on the 'how much is it worth' thread (which mod's'll do anyway) or spec (parts) if you know them.
Edit: Post pics!!