Redirect to a DH site



I need a bit of advice how to accomplish this @ DH. Our DNS and e-commerce site is hosted with our current ISP, but we would like our blog and one more site to be hosted @ DH, so if the user access a sub domain e.g. he will be re-direct to the blog and other traffic goes to the e-commerce site as today

We bought new domain and shared hosting(Happy Hosting ) @ DH as trial setup and got the blog setup, and now we would like to setup the re-direct for the sub domain “”. I’m able to setup DNS record @ our current ISP, either as A-record or CNAME to point to the DH domain, but I need a way to tell it should act as virtual host for on DH

Is that possible with the current hosting plan and how?