hi i'm a new user for GP & i want to know how can i make receivable report by FRx
& Receivables Summary Aged
The short answer is you can't. FRx is designed for financial reporting.
For aged receivables listings, your options are the standard GP reports (Reports >> Sales >> Trial Balance (there are a number of choices here)), SSRS Reports if these are installed or Smartlists.
You should ask your impementtion partner to show you your options.