If you had the original Android 2.1 firmware, the only way to do this was to side load a launcher and then remove or freeze the Huawei launcher.
This was fixed in Android 2.2, where you can use any launcher you want.
I'm currently using Legacy Launcher because it lets me up the font sizes...
Past devices: HTC Dream (Rogers), Acer Liquid E, HTC EVO3D GSM, HTC Panache (international myTouch4G), Huawei Ideos U8150, Rogers HTC Magic (myTouch3G variant)
Current devices: Samsung Galaxy Nexus GSM (i9250), ASUS Transformer TF300, Samsung Galaxy S3 i747m (Telus), Huawei Ideos S7