Can any body help me

hi guys,
i wann know the requerment of Server hardware for astguiclient,
b,cos i want to run 50 seat's for outbound .
help me how to setup the server..
my hardware :
IBM X226
intel Xeon 3GHz Dual Processors
4GB RAM
140GB SCSI HD
Gigabite LAN Card's or 2
using OS CentOS 4.3 or 5 (sajust me which verision shill i use)
plzz
help me
i wann know the requerment of Server hardware for astguiclient,
b,cos i want to run 50 seat's for outbound .
help me how to setup the server..
my hardware :
IBM X226
intel Xeon 3GHz Dual Processors
4GB RAM
140GB SCSI HD
Gigabite LAN Card's or 2
using OS CentOS 4.3 or 5 (sajust me which verision shill i use)
plzz
help me