Ok so my grandma picked me up a laptop from the dumb. So I turn it on and discover why the orginal people got rid of it, bsod. So I replaced the hdd and upgraded the ram to 3 gb sense my moms boyfriend wants a laptop just for web serving, so I thought this would be perfect. He gave me the ok to spend money on getting a new internal keyboard sense 2 are broken. The laptop is a hp 8710w mobile station. I need part number 450471-001 and that is with "pointing stick." What is pointing stick and do you think he will need it. If not, I can get part number 450472-001 without the pointing stick. I have already taken off the keyboard-old. Thing is, it seems like I can only get it from calhountech or aliexpress. I have not heard of either of them, so can I trust? I tried eBay but they have a little diffrent models so I do not think they will fit. Anyways, I need some help before purchasing. Also, if you find one that will work, please provide the link. Thanks in advance.