IIS.CertObj COM-object is still there in IIS 7.0 and we think it is still the best option for deploying certificates on multiple web servers. This component behavior remains the same, so all old script should work (if ABOMapper is enabled).
Note
In LH RC0 there will be a new feature of this object that allows specifying secure bindings as an instance name:
set iiscertobj = CreateObject("IIS.CertObj")
iiscertobj.InstanceName = "0.0.0.0:443"
iiscertobj.Import pfxfile, pfxfilepassword, true, true
And such a script won't be depending on ABOMapper.