http://support.dlink.com/products/view.asp?productid=DWL-G520
http://www.linksys.com/servlet/Sate...sitorWrapper&displaypage=nodata#versiondetail
That's an 802.11b router that you're pairing with an 802.11b/g card. It
will work, but relatively slowly. 802.11b has a max throughput of 11Mbps,
which is higher than you can expect from most broadband providers. You
probably won't get that throughput, though, so I would expect some
slowdown from a wired connection if you've got a half-way fast internet
connection. 802.11g is substantially faster, but you'd have to buy a new
router to get that going.
As far as encryption goes, the router only supports WEP. That puts it
behind the times, but isn't a fatal flaw. Practically any card you buy
will support WEP--the DLink one certainly does.
Bottom line: These devices will work together. If you want to latter
upgrade your network a bit, you can get a new router that supports 802.11g
(or even 802.11g/n) and take advantage of a capability that your card
already has.