Yep… that’s the right place to be.
In the list at the bottom, underneath that, does it say that drive is “Online” or “Offline”?
It should say online, but it’s offline, then you need to right-click at the left where it says “Offline” and put the drive online.
If, on the other hand it says the drive already is Online, I think the solution to your problems is to change the formatting of the disk.
If you go to the list at the bottom again, and right-click over at the right-hand side where the coloured bar is and select “Delete Volume”, and then “Yes” at the “Are you sure” warning, you should then be able to right-click on the now Unallocated disk and select “Convert To MBR Volume” if it will let you. Then right-click on the coloured bar again and select “New Simple Volume” to re-format your MBR drive.
I think that should get XP accessing the disk properly.
If it won’t let you “Convert to MBR” because it already was, you should still be able to delete the volume and then create a new simple volume, without that conversion step. I’m hoping that would be enough to get you back in business.