Quick OllyDbg Question

Hello everyone! I'm using OllyDbg 1.10 to crack "Mail Server Pro v1.5" and I have a quick question:

004B0454  /. 55             PUSH EBP
004B0455  |. 8BEC           MOV EBP,ESP
004B0457  |. 83C4 E0        ADD ESP,-20
004B045A  |. 53             PUSH EBX
004B045B  |. 33C9           XOR ECX,ECX
004B045D  |. 894D E0        MOV DWORD PTR SS:[EBP-20],ECX
004B0460  |. 894D E8        MOV DWORD PTR SS:[EBP-18],ECX
004B0463  |. 894D E4        MOV DWORD PTR SS:[EBP-1C],ECX
004B0466  |. 8955 F8        MOV DWORD PTR SS:[EBP-8],EDX
004B0469  |. 8945 FC        MOV DWORD PTR SS:[EBP-4],EAX
004B046C  |. 33C0           XOR EAX,EAX
004B046E  |. 55             PUSH EBP
004B046F  |. 68 4C054B00    PUSH SMTP_ser.004B054C
004B0474  |. 64:FF30        PUSH DWORD PTR FS:[EAX]
004B0477  |. 64:8920        MOV DWORD PTR FS:[EAX],ESP
004B047A  |. B8 60054B00    MOV EAX,SMTP_ser.004B0560                ;  ASCII "<!>"
004B047F  |. 8945 EC        MOV DWORD PTR SS:[EBP-14],EAX
004B0482  |. B8 6C054B00    MOV EAX,SMTP_ser.004B056C                ;  ASCII "CMD=Register"

The above code is called when a valid key is not found in the registry, However I cannot figure out where in the hell the code is Jumped or Returned from.
For example, after it goes through all the serial checking etc, it's either got to Jump to that code or Return to the code. Is there a way of tracing back?