download this
http://www.breaksoft.com/Blog/Utilities/2005/1/Mobile_Registry_Editor.aspx
Connect your P4000
Run the program after you unzip it
in the left side, navigate to:
HKEY_CURRENT_USER\Software\Microsoft\Inbox\Settings\OEM\
look for “SMSInboxThreadingDisabled” on the right side (probably last on the list)
set the value to 0, instead of 1
reset your device, when you open text messages, if you have any previous messages, they will be converted.
Sorry for the vague short post
I recently got a new phone (HTC Touch, or maybe better known as the P3050) which comes with WM6.
One app that I use quite regularly doesn’t quite work correctly with the Touch and I am trying to investigate why? The app is Microsoft voice command, which works a whole lot better than the HTC voice app that’s bundled with the device. If anyone does know the issues please post!
Anyway, some great sites to get you up and running with mobile 6 are:
http://www.wm6software.net/
http://www.wm6themes.com/
With my new device, I found it really hard to get use to the lack of keyboard, so I downloaded a third party app which gives you a much more useable keyboard that is very similar to the iphone keyboard.
Happy Tapping Keyboard
http://forum.xda-developers.com/showthread.php?t=296455
Live Search for Windows Mobile with voice input. The updated Live Search for Windows Mobile® 5.0 and 6.0 will be available for download for free on Tuesday, Oct. 16, and now includes voice input (beta version), gas prices, and hours of operation for businesses. The service can also use Global Positioning System (GPS) data on GPS-enabled phones to provide location-aware local search for customers.
So now Instead of having to type out you can simply enter text into Live Search on your phone using speech recognition technologies developed by Microsoft (so it may not work all that well)
Check out this video (~2 minutes) of Live Search for Windows Mobile devices
You could also try out this longer video (~8 minutes)
If you have a Windows Mobile 5 or Windows Mobile 6 phone, download the app, and start talking your way to finding businesses and addresses.
I recently (we’ll, actually last year) purchased the Motorola HT820 for my UTStarcom 6700, the headset synced, I listened to music and received calls without a glitch… Well, ok, it’s Bluetooth, a few small glitches, but an acceptable amount.
Then comes the day I get a Treo 700WX… by now I have completely forgotten about my HT820 headphones, and I haven’t used them in months…
However, now that I am biking more often, I found a reason to start using them again, so when I tried to pair them before I went for a ride… no luck! It would work fine as a headset for answering calls, I just couldn’t set the device as wireless stereo like I could before with my 6700… the option simply wasn’t there.
After searching high and low for answers to my dilemma, I stumbled across something that worked… 5 hours and 14 hardware resets later…. 
So, I hope this blog finds you well… before you have to put the same time and effort into it as I did! Just install and start enjoying wireless tunes!
Click here to download the zip. It contains a CAB file… copy the cabinet file to your device with active sync, MAKE SURE YOUR DEVICE IS NOT PAIRED! Install, soft reset, pair your device, enjoy your tunes! 
