as far as breaking a computer goes physically its quite hard to do as long as you dont force things. if something is ment to go in to that slot it will fit there with only a tiny bit of pushing, dont force anything and you will be fine...
i would suggest you first confirm that you have got 2 wireless network cards in you pc (anyone on the forums could tell you if you take a pic of the inside of the pc). if you have take one out. its easy to do just unscrew the screw holding it down (inside the pc on the back wall see image only remove the screw above the card you want to take out not the blanking plate). and it then just pulls up and away from the motherboard (big flat board with everything sticking up from it).
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Yeah I am thinking i might have to do that and get a bigger cable - gonna be a few days until I get a new card.Get a bigger one from a mate or something and plug it in, connect to the intertubes and update your wireless adapter drivers, I had to do this on my PC when I reformatted. You could also download the drivers onto your dell laptop, put them on Memory Stick and connect instead of the other option. I'm sorry if this has already been said.![]()
with regards to anti-static it shouldnt be a problem as long as you dont walk up and down a shag pile carpet with plastic shoes on... like said before just be careful to ground your self first so you dont have any static charge left on you...
pci cards are really easy to install/take out you will be ok.
as for the company who built the pc it seems like there a bunch of cowboys. i would suggest you buy from a different place next time, OcUK is really good for tech help, if anything goes wrong or you buy the wrong thing they accept RMA (returns) and will be happy to give you some technical help.
if you type the instructions they gave you someone might be able to see what they are trying to get you to do and help out with that...
it's building a PC, a 4 year old could do it. get it together man.