'92 jack: convertible & hardtop the same?

Hello,

I need to buy a jack for my 92 convertible. Is this jack the same as for the hardtops? Here's the jack I'm considering. Thanks in advance if you can confirm that it's the right one! Also, this jack goes into a little compartment behind the passenger seat. I've seen styrofoam jack covers advertised on E-Bay. Do you know if these are for convertibles?

Thanks,

Chuck

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33746&item=2459784962