change picture dir numbering ###APPLE

I've been messing with my /var/mobile/DCIM folder
I wanted to manually upload pictures from my pc to my iPhone and I succeded: I deleted DCIM content, put the pics into a new made folder 100APPLE and deleted /private/var/mobile/Media/PhotoData dir to force the phone to recreate the database.

It seemed all fine... but I was wrong!
The problem now is whenever I take new pics with the iphone they are saved into a new 109APPLE dir created; for some reasons it is skipping 101APPLE 102APPLE etc

How do I force the pictures numbering scheme? just editing the Info.plist into .MISC folder doesn't work :(

I've been trying to force the phone to save new taken pictures into 101APPLE editing like this but the phone ignores everything, adds <key>LastFileGroupNumber-101</key> and keeps starting from IMG_9### into 109APPLE folder


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>DCIMChangedExternally</key>
<false/>
<key>LastFileGroupNumber-100</key>
<integer>999</integer>
<key>LastFileGroupNumber-101</key>
<integer>1</integer>
</dict>
</plist>

even uploading pictures using ifunbox or iphone suite can't fix the 109APPLE issue...
any hint?

ps
forgotten to say it's a jailbroken 3gs running iOS 4.3.3