Beware of such friends. They should have installed XP SP2 and subsequent updates. 64 bit encryption is marginal at best. The prefered encryption level is WPA-PSK (pre-shared key) which one of the post XP SP2 updates would have installed on your machine. Unfortunately, the DG824M router does not support WPA-PSK so you'll have to live with either WEP 64 or WEP 128.
This might help:
Connect to the Netgear DG824M router with: http://192.168.0.1 I think it's on the "Basic Settings" page (not sure). It will show an ASCII text string of exactly 5 characters and a hexadecimal string of exactly 10 characters. Write BOTH of them down. That's your WEP key.
If you can't extract the existing WEP key, then change it to a new one. If so, select HEX and not ASCII, as Hex always works, while ASCII sometimes does not because of differences between different manufacturers ideas of how to convert ASCII to Hex. If you do this, you'll also need to change the WEP key in the old computer.
When your new computah requests an encryption key, set it to 64 bit ASCII and give it the 5 character ASCII key. If it's Windoze XP, the
64/128 part is automatic. If ASCII doesn't work, set it to 64 bit HEX and give it the 10 digit Hex key. That always works.I suggest you contact someone that can help you setup and update your machines properly. Your first machine will require updates and you should probably switch to WEP 128 bit encryption for slightly improved security.
The manual is online at: ftp://downloads.netgear.com/files/dg824m_ref_manual.pdf The instructions for setting up WEP are under "Wireless Settings".
The only think this router is lacking is WPA-PSK encryption. Whether you need or want that is determined by whether you're worried about someone borrowing your bandwidth or breaking into your system via wireless.