The UWC3 Beta for AMXX 0.20 is now available, included is a perl script (vault_to_dbi.pl)
to convert existing vault files, but keep in mind this will restrict you to saving by
steamid instead of name, it is untested what will happen after importing a vault file
and then switching to sql_saveby 2 (name mode).

Recent ChangeLog:

Update 09-16-04 12:40pm :: Recompiled .amxx file to have mp_savexp and mp_sql
   turned on by default

Update 09-19-04 1:40pm  :: Fixed sql/vault storage glitch pointed out by Hellion. Add
   commands for saveattribs, saveresists, saveskills, saveall

Update 09-20-04 9:00am  :: Fixed deletexp command, removed medicalert debugging comments.
   Fixed vault_to_dbi.pl conversion script. Version changed to v1.0.0 RC1

Update 09-23-04 9:40am  :: Fixed objective and winning team XP bonuse inconsistencies

Update 09-23-04 4:00pm  :: Testing fixes/logging of the insane health bug (player with 
   neverending health and skillcount inconsistenies (should auto-reset player skills)

Update 09-24-04 1:00am  :: .amxx compiled with RC6 compiler, debug mode should now
   have useful info

Update 09-27-04 5:15pm  :: Bug fixes for skillcount bugs, plugin will reset skills
   for those with invalid skill counts. Objective XP bug fixes.

Update 09-28-04 11:45pm :: Lots of code optimization, testing this RC for the first
   release version 

Update 09-29-04 09:00am :: Fixed Skills Reset Bug, was introduced during code optimization

Update 09-29-04 10:30pm :: Minor code tweaks, more optimizations

Update 10-02-04 12:30am :: Added CVARS UW_disable_givexp and UW_disable_adminmenu
   (set 1 to disable those menus). Added UW_admin_flag to specify the admin access
   flag for XP giving access. See the INSTALL file for info.

Update 10-03-04 8:30pm  :: Added new cvar UW_lowres_default, set to 1 will make the
   lowres setting the server default. Fixed the lowres reset bug, fixed 2 array index
   bugs reported by Kami. Unused sound files removed from zipfile.

Update 10-04-04 9:30pm  :: Bug fixes! Two sources of run-time error 4 have been traced
   and fixed (thanks Kami and Hellion), one exploit that allows instant health regen
   has been plugged.

Update 10-05-04 8:00pm  :: A few sources of the Invalid Entity errors should be fixed.

Update 10-07-04 6:50am  :: More Invalid player entity run-time errors fixed. Internal
   plugin version changed to RC6e (was left out last update).

Update 10-08-04 1:15pm  :: More run-times fixed, block in place to prevent Goombas from
   from making Decoys. Possible teleport Immunity bug fix included.

Update 10-10-04 7:25pm  :: More run-times fixed, the incoming invalid entity reports are
   getting slimmer by the day. :)

Update 10-16-04 1:45pm  :: A few more minor tweaks made, replaced /playerskills with
   /who command and added /whois playername command.

Update 10-17-04 2:00pm  :: Two more invalid ent runtime error fixes, thanks to devicenull
   for pointing out an erroneous PLUGIN_HANDLED in new_round() routine - fixed here.

Update 10-22-04 2:15pm  :: Many bug fixes including Thorns aura/Carapace mirror dmg from 
   evaded shots, Vengeance/Phoenix priority fix, Ultimate HUD status fixed, etc.

Update 10-30-04 10:15pm :: Teleport Immunity Issues Resolved, Mask of Death bug Fixed.

Update 11-03-04 10:20pm :: Added players.cgi as a download, it is a Perl script for
   generating a simple player list for SQL uwc3 data. No support is offered for setting
   the script up or debugging it if it doesn't work for you.

-UWC3 Dev Team