alias, I don't manage to use them

[Sens0r]

Hello,

I'm using ispCP since a while now, and I just like it, great job

Well, I have a question related to the "alias" function in the "Manage domain alias" menu of a user.
I have 2 Websites, for example: ispcprules.com and ispcpreallyrules.com. Now, I want to make them point to the same page.

After reading the documentation and after trying a lot of different entries, I didn't managed to make this work the way I wish. The documentation says:
"If you want to point more than one domain to the same document root, add a domain alias and set the directory mount point to /. This will cause that the alias will point to the root of your main domain."
Well, I didn't work for me, maybe I misunderstood something. What do I have to write in the fields: "Domain name", "Directory mount point", "Forward to URL" for my example?
I would be very happy if some nice person would give me a hand.

Thanks, and Greets,
Steven