setup for Small office nwtwork

Hi! Can someone help me with this setup, any help would be really appreciate. Thank you.

we just open new office with 15 user. here is what i got.

1. Binatone (54M Wireless ADSL2 Modem Router)
2. 24 Port Switch Dlink 10/100 mbps(DES1024)
3. 1 Printer

I need all these pc’s to commutate with each other along with printer also want to access internet

can you help me how to configure this

Mahesh