I have Microsoft word 2007 and i do my school work usin that but i cant print...
 

...it cuz i do it on my laptop...? and i dont have a printer connected to it. so i saved my work into a USB port and went to another computer to print it but it only had microsoft 2003 installed, so i had to do my work over. i also have Compaq Presario with a printer but its kinda old, is ther any way i can connect it to my laptop (hp pavilion) and print my stuff?

When you use Word from the 2007 version choose save as instead of save and choose the version with the doc extension that way your 2003 version will be able to use it without you having to re-do your work.

Or, just attach your printer to your other computer and load the software, then when you need to print just move the cable over to your other computer before you print.