I'm no networking expert, but ISTM that your NAS should work on any OS, even DOS, without any special software from Iomega.
AFAICT, all that Iomega's software does is to determine the IP address of the NAS on your network and then give you the opportunity to configure it. In fact you could do exactly the same thing by typing the NAS's IP address into your browser, eg ...http://192.168.1.103
In win9x you can determine the IP address range of your LAN by typing "winipcfg" into the Start -> Run box. I don't know what tools are available in Windows 7, but here is a freeware tool:http://www.zhacks.com/ipconfig-gui-or-winipcfg-for-windows-7/
Alternatively, go to Start -> Run and type ...
Then, at the command prompt, type ...
In fact, the setup instructions for Linux users appear to confirm that the only function of the software (Iomega Discovery Tool Software for Linux) is to "discover" the NAS on the network. All the rest can be done via the NAS's browser interface, after which your NAS should appear in Windows' Network Neighbourhood.
Another way to access your files would be via FTP. To this end you could download a freeware FTP client, eg ...http://filezilla-project.org/download.php
Here is an article that explains how to gain read/write FTP access to your NAS using Windows Explorer:
How to use FTP via Windows Explorer:http://support.hostgator.com/articles/ftp/how-to-use-ftp-via-windows-explorer
You may also be able to access your NAS by typing the following at a Windows command prompt:
The actual IP address will depend on your network.
Type "?" to see a list of FTP commands.
FYI, Iomega's StorCenter user manual states that "your drive is shipped from the factory with no password set."
"If you have lost or forgotten your password, reset the drive to the factory defaults by holding the power button down until the drive activity light flashes red. Once the drive activity light returns to solid blue, run Iomega Discovery Tool again.
NOTE: If you set the configuration option to disable the factory reset button, you cannot return the drive to default settings."
The following resources may be useful.
Installing the Drive - Linux Users:http://www.iomega.com/support/manuals/storcenter/en/consolidated/linux.html
Support & Downloads » StorCenter Network 1TB (4HD x 250GB) » All Operating Systems:https://iomega-na-en.custhelp.com/app/cust_alp/p/1031,1007/p_pv/2.1007/
User's Manual - Iomega® StorCenter Wireless Network Storage:http://www.iomega.com/support/manuals/storcenter/en/consolidated/main.html#quad