In GW (as everyone knows by now) there are certain titles that can be achieved and displayed on characters. One such title is the cartographer title which is obtained by visiting every inch of the map on all three continents. In order to visit every inch of the map it is necessary to "scrape" walls of the map in many explorable areas and it can be quite annoying and tough to find all the little nooks that exist. To help with the cartography title, it is possible to use an application called Texmod (frequently misspelled TextMod) and a template file to show you where you have missed. Here is a screenshot of a section of map to show you how it appears.

GW screenshot showing how the map looks when you are using Texmod.
The map shows where you have been, where you need to visit still (in gray), and where you can not map (the black areas). This makes the cartography a hell of a lot easier and can save hours upon hours of scraping walls looking for missed areas.
NOTE: there has been much discussion over whether or not Texmod violates the ArenaNet End User Licensing Agreement (EULA). If you press F10 [in game] and type in "texmod" and search for it, you will be brought to a page on the official GW wiki for modifying in game graphics. Frankly, this means nothing. ArenaNet will do whatever the fuck they want, to whoever they feel like… and Texmod is not at the top of their list of shit to deal with.
Now that you know ANet doesn't care, how do you get this fine program? Better yet, how the hell do you make it work? Seriously, I don't know why it has to be this complicated but it is…
01. Start by clicking HERE to download texmod.zip
02. Save it to your GW directory [probably C:\Program Files\Guild Wars]
03. Browse to your GW directory
* Start -> My Computer -> C: Drive -> Program Files -> Guild Wars
04. Double-Click the texmod.zip file [you should see a texmod.exe file and a readme.txt file]
05. Right-Click the texmod.exe file and select Copy
06. Click the Back button at the top left of your window to return to your Guild Wars directory
07. Click Edit in the menu at the top of your window and select Paste
08. Right-Click on the new Texmod icon and select Create Shortcut
09. Right-Click on the new shortcut and select Rename
10. Type in Snork Rocks and hit Enter
11. Drag the Snork Rocks icon to your desktop and drop it there
12. Close the window with your Guild Wars files and this should return you to your browser window [still looking at my website]
13. Click HERE to download the map file [need to have cookies enabled for some reason]
14. Save the map file to your Guild Wars directory
15. Close all windows and Double-Click the Snork Rocks icon on your desktop
16. Click the folder icon at the top left of the Texmod window
17. Double-Click the GW.exe file [the little helmet]
* You should now see the little helmet where the folder icon was
18. Below the helmet you should see two boxes with a vertical row of four buttons between them, click the top button [also looks like a folder]
19. Select Browse on the menu that pops out
20. Double-Click on the Cartography map file which should return you to the main Texmod window again
21. In the left hand box you must highlight the Cartography map file so that it's description shows up in the right hand box
22. Now click the Run button and Guild Wars should start
23. Logon and press M to see the modified map
You will need to perform steps 15 through 23 each time you want to use Texmod. You may still start Guild Wars the way you used to if you don't want to use Texmod. These instructions are not terribly forgiving and if you miss something or fuck something up then it will probably keep you from completing the steps. The best way to avoid problems is to print out these instructions and do them word for word, step by step.