I have put together some previous articles on upgrading the firmware on your Linksys WRT600N wireless router using various versions of DD-WRT. One thing I have not included in the articles is the specific DD-WRT download location for the firmware branch that I prefer which is called BrainSlayer. So below is a brief explanation of DD-WRT FTP structure where the WRT600N firmware is located.
Earlier today I reinstalled Windows XP on a friends Dell Inspiron 1525 and while working through the custom Dell drivers I ran into a minor issue. The issue was related to some devices showing up in the Windows XP Device Manager called Base System Device. Typically these are chipset devices but I thought I had installed all of the necessary drivers so I was a bit confused. In reality I forgot to install one of the chipset drivers called Ricoh. Below is information on how to install the drivers for the unknown Base System devices on a Dell Inspiron 1525.