Okay,when I first bought Worms Armageddon,I could NEVER join a game,because all it said was "Could not get checksum 15" when I tried to join a game.I have not installed any updates or anything,but I would be VERY grateful if someone could tell me what I need to install,or whatever,because I really wanna play with someone online.:(

first, ftp://ftp.team17.com/pub/t17/patches/pc/WAPatch.exe

then
ftp://ftp.team17.com/pub/t17/patches/pc/WA_Update-3.6.26.5_Beta.exe
(select the right path, usually C:\team17\worms armageddon\)

if you want to host, you have to open the right ports in your router/firewall (look here http://forum.team17.co.uk/showthread.php?t=30270 or here http://www.nanacide.com/wahelp/)

When i tried to setup the patch,it said Cannot load for Word 6.0 or something.The,when i clicked Worms,there was an application error.Should I stop,or should I do something else to fix this?

Pisto is being stupid. You need to go to www.nanacide.com/wahelp

Muzer is old-fashioned. Just go here (http://forum.team17.co.uk/showthread.php?t=31140) and download and run this (http://worms.thecybershadow.net/files/WA_update-3.6.26.5_Beta_Installer.exe).

If you looked, a similar program is linked to on www.nanacide.com/wahelp, and that site is easier to remember than http://forum.team17.co.uk/showthread.php?t=31140 or http://worms.thecybershadow.net/files/WA_update-3.6.26.5_Beta_Installer.exe (Meh, I'm lazy)

When i tried to setup the patch,it said Cannot load for Word 6.0 or something.The,when i clicked Worms,there was an application error.Should I stop,or should I do something else to fix this?
the first thing, about word, happens also here. dunno why you get an error after. have you installed the update (the second link)? install it
Pisto is being stupid. You need to go to www.nanacide.com/wahelp
i'd better not reply...

Wise pisto, wise answer.

Now I hav a different problem.I installed everything,it works fine,but then i added a flag and a grave,and now some error message comes up when i try to click Edit Team or New Team in the game.Can someone help me out with this?:mad:

remove the flag and grave you added xD

and pisto, that word 6.0 error is what appears if you open a MS Office Document with Wordpad... which is what the patch attempts to do =\

After removing the grave and flag, load the game. If it works, you know what the problem is. Make sure the files are in the right folders and make sure they are the right filetype and file size. For more on this, here's a link.
http://www.nanacide.com/wahelp/playersguide-flag.php