AFAICS the CC2500 has a SPI interface. So where do you get the RX line from? (Apart from RX implying that its the line where the CC2500 gets its data, but not the one its sending stuff out).
So look at the SPI master extample projects in Creator to see how that component works. Having done that, ypu will need to look at the CC25000 documenation to find out how its used. (I found an overview here: http://www.engineersgarage.com/contribution/wireless-communication-24-ghz-rf-transceiver-cc2500 )
The cc2500 I am using is an easy to use plug in device. I have attatched a file which I got with the module. It says this one is a easy to use modem and' requires no extra hardware and coding to turn wired communication into wireless one'. And Psoc is a receiving unit in my project. It receives the values from sensor nodes. Can I use this module and proceed? Or should I buy the cc2500 alone and spi interface with psoc?
If your CC2500 is configured to work as a UART bridge, then use it just as an UART. In that case look at the UART component, configure it to the data rate that you have configured your module to, and off you go.
When using the -001 kit, don't use the provided RS232 level shifter, but connect the module directly to the PSoC GPIO lines.