RadioShack® RCA to S-Video Cable (6-Ft.)
The standard legacy S-video plug has 4 pins - S-Video needs only needs 4 pins - it will plug in and work fine with the 7 pin (hole) socket your laptop has.
Radio Shack Web only
Cables To Go 13058 Bidirectional S-Video-to-RCA AdapterModel: 13058 | Catalog #: 55010621
Radio Shack Web only
Cables To Go Value Series 12-Ft. S-Video to RCA Adapter
Also has audio cables.
Local smaller places that have lots of computer parts and build custom computers probably have the S-Video gender adapter - it only needs 4 pins, it will work in the 7 pin (hole) socket.
However, there's probably nothing wrong with the one you have, unless there is / are (a) pin(s) broken broken off !
Local "dollar" stores often have male to male RCA cords, but likely a pair for audio (red and white) or a triple set - for audio (red and white) and video (yellow). Someimes the triple cord set has a thicker cord for video, or all three are thicker.
Or Radio Shack probably has the dual or triple cord set in store for more money.
The fatter RCA cords are sheilded better and a lot less likely to pick up outside interference, but a skinnier RCA cord may work fine
If you have any spare dual RCA audio cables, try one of the cables with your S-Video adapter.
I'm assuming you're in the US because Radio Shack no longer has any physical stores in Canada, at least they don't anymore where I am in western Canada - they were taken over by Circuit City's "The Source" outlets.
Is there a Circuit City "big box" store where you are ?
In stock at Circuit City
Cables To Go 40454 12ft RCA Composite Video Cable
These found by searching for: RCA cables and then looking on MANY pages of the results to find them ....
Cables To Go Value Series Bi-Directional - Video cable - S-Video / composite video - 4 pin mini-DIN (M) - RCA (M) - 25 ft - double shielded coaxial - black
Cables To Go Value Series Bi-Directional - Video / audio cable - S-Video / composite video / audio - 24 AWG - 4 pin mini-DIN, mini-phone stereo 3.5 mm (M) - RCA (M) - 6 ft - double shielded - black
They also have really high quaity cables in those listings that have the same connectors, but they're much more expensive.