Orange customer support has got a little too over zealous posting help files it seems, as it posted and then pulled a series of diagrams of how to change the battery and SIM of the new HTC Mozart.

What's the problem with that you ask? Well, the HTC Mozart hasn't actually launched yet.

You see the HTC Mozart, which has already seen its fair share of leaks, is the company's latest Windows Phone 7 handset expected to be announced officially on the 11 October at an event in London.

The Orange support page doesn't offer much in the way of details on the HTC Mozart that we didn't already know, but it does show the back design, and that the battery and SIM are likely to be loaded and accessed in the same way users of the HTC Legend do.

The news comes as a Phones 4U leaked screengrab showed the phone hitting in late October.

As well as the date, the leak also contained a few juicy specification details. The Mozart is said to have a 3.7-inch, 800 x 480, TFT LCD touchscreen with a 1GHz processor. Onboard it has an 8-megapixel camera with a Xenon flash and is capable of 720p video recording. There's a 1300mAh battery and 8GB of built-in storage.

We will know more after the official announcement of Windows Phone 7 on Monday.

And yes, Pocket-lint will be at the event bringing you all the news as it happens.