Can you tell me the maximum connections of DSL LINES that ISA server 2003 can support at the same time on single server?

ISA SERVER CAN SUPPORT ONLY A SINGLE LINE OF DSL INTERNET CONNECTION BECAUSE ISA SERVER I CANT SUPPORT THE MULTIPLE DNS ADDRESS ON SINGLE NETWORK THATS YOU CAN SAY THE DRAWBACK OF ISA SERVER

Yes, it will support. ISA and TMG server will verify with Public and Private LAN Network.