[JKT]

Do you mean the "Close window" that is presented by the code in the window and not the close button on the tab?

If so, I guess it could be set up so that it puts you back in the original site and therefore jumps you to the correct tab - this isn't something I've noticed myself as I tend to use command-W to close my tabs.

There isn't any way for us to implement better tab handling in OmniWeb - something we'll have to wait for OmniGroup to implement.