Soooo many questions, China :)
1. What is a Virus and their origin ?. Ultramicroscopic infectious agent that replicates itself only within the cells of living hosts. In essence a piece of nucleic acid (organic replicating molecule), most commonly RNA but sometimes DNA. Their origin is difficult to ascertain, since unlike larger organisms they don't for example leave a fossil record. It is has been hypothesised that they are the living remnants of the enzyme that switched our replication system from RNA to DNA, and , in similar fashion to Darwins theories that all life is from a common ancestor, that viruses too all have a common, long distant ancestor.
2. Cold Viruses. I think there are thought to be approx. 200 viruses associated with the common cold. These viruses are broadly linked into "families" of viruses, but all can give the common symptoms of a cold when present in humans.
3. Cure for common cold viruses. Very difficult to come up with a cure for the cause rather than the symptom, since there are 200 or so, all of which will evolve/adapt/mutate. You would have to find a marker (protein present on the virus) that was common to all, but not present in humans in order to target any cure....and because there are so many, from several different families, and they are mutating all the time, this would be extremely difficult.
Secondly, you have to question the worth of such a thing... A cold is hardly life threatening after all ( although can be an extreme nuisance, I know), and the illness itself is of a very short life span.
Thirdly, treating the symptoms of a cold is probably a better use of resource/time/research etc in any event.
So, in answer to your question... no, its is unlikely that there will be a "cure" for the common cold any time soon.
ctd