Problem printing on a Dell 968 AIO printer with wireless network adapter

I have a 2wire router from Bell.  It is configured with a WEP code.  I entered this WEP code on my laptop and have no problem of connection.  I have a Dell 968 AIO printer with option to add a wireless adapter.  I added a Dell 1150 Network Adapter later on an successfully connected the printer to the router using the configuration utility wizard.

Few months later I tried to connect my laptop from the company I work for to the wireless printer.  I could not install the driver successfully and found out the company did not allow that we connect the machine to wireless printer.  Since then, I have problems connecting my own computer to the printer.  I uninstalled the printer drivers and reinstalled it many times using the disk that came with the printer.  I tried by selecting the wireless option.  I also tried by selecting USB cable (wireless adapter removed from the printer) and configured the wireless adapter then after.  A tech from Dell Support loaded the newest drivers and worked on my machine over an hour without success to print wireless.

I reinstalled it myself using the disk and still cannot print local documents (emails, Word, Excel, Access, etc) wireless but I can print documents from the internet and the test page prints when I do the new install.  When I print the network settings from the printer menu, the printer stops at the wireless settings.  It only prints the line Type BBS: Infrastructure and freezes there.  I have to restart the printer.

Any idea where to look?

My machine is a Dell Studio 1735 if that is of any help.