Here is the preview feature! Finally!! Version 5 is getting really close to be on par with the features of version 4.
I tested it as much as I could, it was working very fine (and fast) but I will let you judge! 
What's in this new version:
- Preview feature
- Added support for AGON series .SFL (without folders, I will try to figure out how they work) thanks to XentaX Wiki.
- Fixed HyperRipper bug (missing some entries) --> Thanks to Psych0phobiA for the patch.
- Added Truevision Targa TGA support to HyperRipper --> Thanks to Psych0phobiA for the patch.
Comments: http://forum.elberethzone.net/viewtopic.php?f=12&t=373
A day working on Dragon UnPACKer and the result is v5.3.3 Beta! Go grab it if you haven't yet:
http://sourceforge.net/project/showfiles.php?group_id=108923&package_id=127752&release_id=621503
What's new? Well previewing feature of course! And a lot of small modifications and fixes.
I also received a mail from Psych0phobiA with a patch to add Truevision Targa TGA (RGB) to HyperRipper search. He also sent a fix for HyperRipper. Everything is included in 5.3.3 Beta. Thanks Psych0phobiA!
Commited to CVS a working previewing ability. :)
Quite fast. I had to go for integrating Vampyre Imaging Library to the core.
Going via the convert plugin was too complicated (and slow).
I still need to polish everything, make all new strings translatable and I will release 5.3.3 Beta.
I am back from holidays, finished (almost) the move-in, so hopefully I will be able to work on Dragon UnPACKer as of next week. 
Nothing done since last word from me. I won't be working on Dragon UnPACKer for at least another month (holidays & move-in to another place).