Lost Tablet Funcionality on Gateway M275

My tablet came with Windows XP Professional Tablet Edition factory installed, though I purchaced it refurbished. Recently my wife downloaded an update from Microsoft which crashed the system and it would not load Windows even in safe mode. I uninstalled several of the most recent windows updates, but that did not work. Eventually, I decided to reinstall the software, but mistakenly used the wrong XP cd.

I reinstalled again using the system restore cd/dvd provided by Gateway. Windows XP Professional now loads, but it is not Tablet Edition even though I used the disk provided by the manufacturer and I can't use any of the tablet functions. Unfortunately, I can't get any help from Gateway, MCP or Acer regarding this.

I examined the contents of the cd and found something called WACOMPEN that's apparently an SY file, and in the Device Manager I found Wacom Serial Pen Tablet listed under the Human Interface Devices. However, I don't know how to get Windows to recognize the tablet functions and don't understand why Tablet Edition wasn't installed with the system restore.

In addition to that, my wireless connection doesn't show up in Network Connections so I can't find my wireless network, nor can I go online even when plugging directly into my modem via an ethernet cable.

I apologize for such a long message, but I'm really at the end of my rope here. I'm sure I may have messed things up more when I accidentally installed the non-tablet edition XP first. Still, if you guys can help me I would really appreciate it.