Regarding the Blood Mods:

Please forgive my ignorance and my newbie status. MOH 1 + MOHU are my favorite all time games so I will be purchasing MOHAA today and installing a new graphics card. Anyhow, it seems as though there are so many blood mods out there, as they get better or new versions come out, will the new version replace the old one once installed or should it be removed first. Also, are there any other mods out there that anyone can suggest for a beginner?