Microsoft Word 2002-2003 compatibilty?

My laptop is having problems printing, so i usually email myself a document i need to print, so i can print it from my computer. However, i don't know if 2002 documents are compatible with 2003. It is way too hot to work with my computer at the moment, so i work downstairs with air conditioning with my laptop. My laptop's microsoft word is 2002 edition, and my computer's is 2003. My question is, if i type my documents on my laptop and send it to my computer, will i be able to edit/print those documents from a newer version of word?

Microsoft Word 2002-2003 compatibilty?virus protection software

Yes they are.

I use PCAnywhere so that my wife can use her computer right from her laptop downstairs over the network to run her computer upstairs for the same reason. Everything she does is really being done upstairs but she's downstairs. We have zoned a/c and I have the upstairs a/c off.

Microsoft Word 2002-2003 compatibilty?adware

Yes, go for it.
yes 2002 and 2003 are compatible, so is 2007/2003 but you need the compatibility pack from microsoft
Sure.
Yes. With almost all software you can read older file formats with a newer version of the software.

For the most part you should also be alright with backwards compatibility. Unless you're using a feature specific to Word 2003, Word 2002 should be able to open documents you've created in Word 2003.