Currency digit in WHMCS

Hi there, We need help on currency digit with WHMCS. Currently it is US$ based, we'd liek to have it Rupiah ( Rp.) digit mode. For example: currrently the system write Rp.100000.00 ( which menas one hundres thousand). The changes neeeded: Rp. 100.000,- ( full stop after 00 and comma and dash at the end) if one million, it should be written: Rp. 1.000.000,- ten million = Rp. 10.000.000,- ( don't get excited with the numbers, our currency against dollar is $1=Rp. 12.500, meaning Rp. 1.000.000 = +- $80:) ) Please submit your proposal showing your previous works with [login to view URL] definitely transfer the money once the work is done. Thanks,