Its 3.0ghz ht enabled processor so update to dual core without ht. only 0.5% extra speed u get so now do u want to upgrade ur processor.
buy a new Mobo Instend example Intel 41express chipset Mobo.it supports p4 ,dual core ,core 2 quad .ddr 2 ram 800mhz,(now u r board support 533max I guess ).1gb inbuIld gpu.
then after some months update to core 2 quad.
thanks for the reply friends!
will buy a new 41exprees mobo as suggested or if lucky a new complete system:)