Apache Streaming MP4

I've installed H264 Streaming Module for Apache 2 from: h**p://h264.code-shop.com/trac/wiki/Mod-H264-Streaming-Apache-Version2.
Replace ** with tt

Loaded the mod in httpd.conf but my streaming of MP4 files don't improve at all.
Other file types like: WMV & FLV at high bitrate or large filesize have no problem streaming. Only MP4 files are giving me problems when streaming through JW Flash Player.

I've made 2 test pages, read on:

1) h**p://x264-bb.com/vids/ >>> Replace ** with tt
MP4 File hosted on a CDN server.
This server hosting my MP4 file which works perfectly fine on any browsers anytime when visited, so this proves that my MP4 file has no problem to be streamed online.

2) h**p://x264-bb.com/vids2/ >>> Replace ** with tt
The exact same MP4 File hosted on my server, giving me the headaches!

Problems facing are:

- can't load the streaming MP4 at all on IE7
- can't load on Firefox unless multiple times of refreshing if you get lucky
- after working on Firefox, it stops working later
- HTTP Pseudo Streaming is not working at all when it works on Firefox