All drivers need to be reloaded due to hdd failure  

I have a compaq CQ57 that had a catastrophic failure of the 500gb hdd. I lost everything. The local shop sold me a new 500gb hdd and gave me a disc to reload my Win 7 32 bit to get me restarted. It worked great after I loaded my Win 7 product key. The disc obviously did not contain any drivers as I now have a new system with no drivers. I cannot get out on the internet to download as I have no network adapter driver. I obviously need to download the drivers using another pc to a usb stick. Where do I go to get the drivers and how do I go about downloading them to a stick?

Thanks Maxie,
I had tried the Ethernet cable direct to the router but it failed due to the missing driver for the network adapter. You are correct that if I can get to the WEB I can download the missing drivers. Hence the attempts to get at least the one driver to get me out!! Even the built in wireless adapter doesnt work. I am going to try and borrow an external usb wireless dongle and load the driver for that.
Yes There are more number to the laptop. It is a Presario cq57 307TU. I have logged on to the Presario website successfully. I was looking for a download of all drivers that I could copy to a dvd that I could insert in the laptop. Is there such a download?