Alarm Bells. Delete it immediately and readd, then please inform Support about that!
Easy One-Clicks aren't hosted in your userspace. You'll need to install via Advanced One-Click or manually install the script yourself.
You can use any service you like to point at your domains. Be aware that the IPs for your sites may be different from each other, and that they may change from time to time without notice.
Maximum Cash Discount on any plan with MAXCASH
How To Install PHP.INI / ionCube on DreamHost