Change Company Name on Service Call Invoice SD.640.00

We are using Dynamics SL 2011, FP2.  I am trying to make a slight change to our company name on the Service Call Invoice Screen, SD.640.00.  The name in Administration > Company Maintenance is different than what prints on the invoice, so that isn't where to modify the  name.  In Crystal Reports, the Name is on the Page Header listed as @CoName.  When I edit that Formula Field, it shows the Formula

If ToNumber(ADGclsADGCryFunctionsPOSetup("PRTADDR"))=1 Then
  Trim("Phone:  " +  FmtPhone( ADGclsADGCryFunctionsPOSetup("BillPhone") ))
else
   ""

I don't know how to equate that to where the Company Name is?  Any help would be appreciated.