My client has their domain names and servers spread across Media Temple and Bluehost - so I'm not sure the best way to approach this. They have a domain name registered on Bluehost, but I need to point it towards a subdirectory on Plesk. I have limited networking experience - I'm not sure how to access the IP address or the subdirectory that has the subdomains files installed.
For example, on Bluehost I have dev.example.com registered and I have a WordPress install on Plesk at /httpdocs/dev of my parent domain and I need to point dev.example.com to parent/httpdocs/dev.