I have a wrt54g wireless router - and need to secure it

I have an older router that has never been secured and need instructions on how to secure it.  I printed the pgs off the linksys website but it seems that the link has been broken because I can only get part of it to even show up on line, much less print it.  Any ideas? Thanks!

First upgrade/re-flash the firmware on your Linksys router and then try to secure the network.
To upgrade/re-flash the firmware on your Linksys router follow these steps
Go to website linksysbycisco.com/downloads.........insert model no of your router in search tab......select proper version of your router........download the firmware file......save that file on desktop
Firmware Upgrade/Reflash
Follow these steps to upgrade the firmware on the device : -
Open an Internet Explorer browser page on a computer hard wired to the router...
In the address bar type - 192.168.1.1...Leave the Username blank & in Password use admin in lower case...
Click on the 'Administration' tab- Then click on the 'Firmware Upgrade' sub tab- Here click on 'Browse' and browse the .bin firmware file and click on "Upgrade"...
Wait for few seconds until it shows that "Upgrade is successful"  After the firmware upgrade, click on "Reboot" and you will be returned back to the same page OR it will say "Page cannot be displayed

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