mojemimi :
I'm sorry, I put the model number in the header, not the body of my post. My bad!
It is an Aspire 5742-6720 laptop, also apparently known as the Aspire 5742 Calpella_CRB which is what I get when I go into devices and printers and click on the computers properties.
When I previously went to the link you recommend, I wasn't able to download any drivers to my flash drive. I know you say I am downloading the installer, but I am obviously doing something wrong since the installer then requires internet to access the actual driver. Any ideas how to get the installer and then the needed driver on to my wannabe computer?
Alright well I just downloaded the files and put them onto a USB, and I don't even have an Acer laptop, so chances are you're doing something amiss.
After visiting the link, type "Aspire 5742" into the area labeled "Search by Product Model" Then click on the "Aspire 5742" listing from the list that should appear as you're typing, reminiscent of something like Google autocomplete. Then scroll down towards the bottom of the page until you see the name of your laptop, an icon of it, and all your drivers. Then next to the portion labeled "Operating System" change your selection from Windows 7 32 bit to Windows 7 64 bit.
Simply scroll down then to the appropriate LAN or WLAN driver and click on the far right side "download". Once you download it, use your favorite archiving program (WinRar, 7zip, etc.) to unrar the download and finally place the unrared folder into your USB drive.