Hi there, i got a problem with my... Im not sure whether my iphone or itunes..

Here is the problem. This morning, i wanted to transfer some videos that i've just converted it into mp4 file by using Videora iPhone Converter, this converter works excellent and the videos always playable by my iphone. But the weird thing is, this morning i sync my phone, then i ticked those videos name "kangxi 1", "kangxi 2" and so on, and apply, it sync for a while and for nothing, no updates from my iphone's library at all.. All my previous videos still there.. I also tried to sync others of my photo folders, same outcome previously stated..

My iphone is iphone 2g 8gb, unlocked and jailbroken os3.0, still got 2.39gb free space but the videos only consumes 230mb.. Picture attached for better understandings..



Please help!!!

iPhone Generation : iPhone 2G 8GB
Unlocked? (or Part Number): Yes, soft unlocked
Current Firmware : OS 3.0
iTunes Version : version 8.1
PC/MAC : pc windows vista x64
Jailbreaking software : not sure

Problem Encountered :
I got a problem with my... Im not sure whether my iphone or itunes..

Here is the problem. This morning, i wanted to transfer some videos that i've just converted it into mp4 file by using Videora iPhone Converter, this converter works excellent and the videos always playable by my iphone. But the weird thing is, this morning i sync my phone, then i ticked those videos name "kangxi 1", "kangxi 2" and so on, and apply, it sync for a while and for nothing, no updates from my iphone's library at all.. All my previous videos still there.. I also tried to sync others of my photo folders, same outcome previously stated..

My iphone is iphone 2g 8gb, unlocked and jailbroken os3.0, still got 2.39gb free space but the videos only consumes 230mb.. Picture attached for better understandings..

Steps Taken So Far :restart pc, restart iphone, move the video files here and there.. etc....
Screenshot of Problem(if applicable) :

Other Information/Remarks : -

I did change the file name but i change it before adding the videos to my itune..

Like erm, when i downloaded it, the file name was aubfiaudbaid.flv, then i change it to 1234.flv only then i convert it to mp4 file and add the videos to my itune playlist..

OMg.. who can help me on this?

@frozzbyte

Yes, can.. no problem at all.. i cant sync videos, cant sync email.. all can be done last time but not now.. i not yet try to sync musics..

Opps, sorry, im using itunes 8.2 instead.

Ok, i will try this.. But i think its not gonna work also.. cuz even my pics also cannot sync already.. while yesterday still can.. anyway, hope this work.. den i gonna figure out wth happen with the pics one..

I've tried to convert it to .m4v format, still not working.. it sync but just don't transfer to my phone.. Probably something wrong with Itunes? Or my iPhone?

Because I've tried to sync pics, mp3 as well, just the same outcome.. when i click apply, it start to sync for a while and backing up bla bla bla.. all for around 3-5seconds, then done.. I cant see any progress of transferring from iTunes to my iPhone..

Please.. Advices needed

@davidgary73,

Any link for the tutorial to do so? Because the jailbreak was done by my friend, i have no idea to do it at all.. And my phone currently unlocked with OS 3.0, will that gone too?

So if re-jailbreak, my previously installed app and all my details will remain or will lost?