mORMot Open Source

I am steadily working through the documentation, but haven't found the answers yet.
Using Delphi XE (may be moving to XE 3 pro if I can work this out) and Windows 7.  Will eventually be trying to port it all to the cloud.

1) the client/server examples have the server running as a service.  is it possible to make it into an isapi dll to be run under IIS?  If so, what are the steps (I know with datasnap, I just basically turned it into a library)
2) given a 20 year old pre-existing database structure(currently in MSSQL)  - all tables have an identifier field (recID) which I added 5 years ago, and  string field called UID, which is generated through code - and this UID is used to link master/details, codes, etc, and many will refer to the same table in multiple ways(like my order table links to my tech table in 5 different places)[there are reasons that I won't get into as to why the UIDs are still in use instead of recID)
is it possible/feasible to implement the ORM features? 
If so, can you point me in the direction to get started,
If not, is there a way to fake it?(like somehow loading it through queries as needed?)

3) while the backend will be written by me in Delphi, the front end will be written by other people using jsp, html, whatever.  Is there anything special I need to do in order to allow this to happen without any issues on their end?

4) will there be any issues running it under https?