sorry it took so long to reply. so assuming you havnt gotton it done yet ill do my best to give you instructions.
1) be sure to have all computers on the same workgroup. right click my computer, properties, then on the left pane click advanced systme settings. click on the computer name tab, then click the button that says change. in the box labled workgroup, type in a name, and do this for all the computers you want to share files and the printer, making sure that you name the workgroup the same on all the computers. reboot
2)on the computer the printer is connected to, go into the control panel and click printers. locate the printer that you want to share, and right click it, selecting properties, then select the tab that says sharing. check the box that says "share this printer" and check the box that says "render print jobes on client computer". click apply then ok.
3) on the other computers that arnt hooked up to the printer, go to the control panel and click network and sharing center. on the left pane click view computers and devices. click the computer that your printer is connected to. right click the printer that shows up and select connect. (you may need to install the driver for the printer on each computer.
4) on the computers that arnt directly connected to the printer, go to contro; panel and select printers. right click the printer you have and select "make default printer.
5)try todo a test run on the computer not directly connected to the printer. you may need to select the printer, on the print page from the drop down menu, although probably not.
to share files, do the following.
1)on the computer that has a file/folder/drive that you want to share, right click the desired file and select properties.
2)click the sharing tab, and click the advanced sharing button. select the box that says share this folder, click apply then ok
3)go to the security tab click edit then add. click advanced, then find now. scroll down to the word "everyone". select it then click ok. click ok again then apply then ok.
do this for any file you want to share on which ever pc. when you go to the network and sharing center and select view computers and devices you should see each pc on your network and in your workgroup. clicking on any pc will show you what each is sharing and will be able to access those files. you can make shortcuts to the computers or shared files on your desktop for qiucker access if you would like. hope this helped. if you have any questions ill try and help. let us know if you have success...enjoy