Since my recent migration from XP to Ubuntu, there's one feature I've been trying to emulate but haven't been able to:

In Windows XP, thanks to a comic reader called CDisplayEx, I could see the first image inside a rar archive as the thumbnail for said rar in Windows Explorer (the same with zip and cbr). This was very useful in folders full of unorganized comics.

How can I do this in Ubuntu?

Ubuntu 9.10
Nautilus 2.28.1
If there's more info I should include, feel free to say so.