A few points:
1. Amazing Charts uses SQL Server 2005 as its databse. This database engine REQUIRES Windows Server 2003 or higher. You cannot use NT 4.0 or any other OS previous to Server 2003.
2. To run SQL Server 2005 on a Mac you must either use emulation or use virtualization.
3. Using emulation or virtualation will introduce their own complexities and nuances. If you have issues, you may find support from AC limited. You should consult with AC if they will support their product being virutalized or running on an emulated environment.
4. As for Microsoft supporting SQL Server running in a virtualized environment, see this KB article for details:
http://support.microsoft.com/kb/956893JamesNT