Huh?!

Ok, so I switched to HaloScan...which by the way when I saw that my Blogger comments were gone my heart literally stopped beating...definitely NOT the same as taking off a band-aid! However, when I deleted the HaloScan post from my blog...*poof* HaloScan was gone and Blogger comments were back. Maybe a blessing in disguise...or perhaps a virus in the system? Anyways, if anyone could tell me in "small words" how to keep my Blogger comments and add HaloScan I would really, really, REALLY appreciate it. I know it can be done because I've seen it before...thanks!