This is incorrect. If it comes from a mammal, it MUST be from a mammal that's considered Kosher (cloven hooves and chews its cud.) If from a fish, it must be from a fish that's considered Kosher (having fins and scales.) I believe that there's a vegetarian gelatin, and that's OK.
Kosher red wine
Actually, both red and white wine CAN BE considered Kosher, as long as the entire production from planting to bottling is supervised and follows certain rules. All other forms of alcohol are considered Kosher.
Mark
Sorry, but I deffer to my sources .....