After successfully JB'ing my iPod Touch and spending far too much time troubleshooting and tracking down solutions to problems, I've decided to compile all of the tips and advice I've found both here and at ipodtouchfans into this thread, hopefully it'll help someone else! I don't take credit for this stuff, these are just answers to common problems that I've found to be effective. Enjoy!
Merging Video+Music icons
Download this file, unzip it and drop the Info.plist into /Applications/MobileMusicPlayer.app, overwriting the one that is there. You might want to back up the existing one, just in case. Respring, and you will have just the iPod app.
Now, if you want to change the wording when you double-tap the home button from "music" to "iPod" you can download this file and drop the enclosed file into /System/Library/CoreServices/SpringBoard.app/English.lproj overwriting the file there. This file has all the other default strings so if you've changed them with Customize this file will change them back to original.
Installer crashes
After installing the latest update for installer.app you may find it crashing every time you try to install something, popping up a 'main script error' window. This is how I fixed it. Enter the following two commands in term-vt100 or in Terminal on your Mac (to use Terminal on your Mac, enter this command: "ssh root@YOURIPODSIPADDRESS" minus the quotation marks, of course, after which you will be prompted for the password "alpine")
chmod +s /Applications/Installer.app/Installer
chown -R root:wheel /Applications/Installer.app
After entering these two commands, installer.app should work fine!
TERM-VT100 password error
After doing a 1.1.3 JB you may find it impossible to use terminal on your iPod. The solution is simple. Go to installer and add the source www.trejan.com/irepo then find SUID Lib Fix and install that, then find Term-vt100 SUID Fix and install that. After restarting your iPod, terminal will work fine with the password "alpine".
Summerboard themes don't show up
The location of the themes has been changed with the latest version, and sources have to change where they download to. The old location was /private/var/root/Library/SummerBoard/Themes and the new location is /private/var/mobile/SummerBoard/Themes. If you SSH into your Touch, just move the Themes in the old location to the new one and they will show up.
Maps' Hybrid view doesn't work
Go to var/mobile/Library/Library/Caches/MapTiles and delete the file MapTiles.sqlitedb which is the cache for the maps app. The next time you launch Maps, hybrid view should work fine. Sometimes it doesn't start to work until after you have zoomed to the maximum level, after which it works at all zoom levels. An odd little bug.
Merging Video+Music icons
Download this file, unzip it and drop the Info.plist into /Applications/MobileMusicPlayer.app, overwriting the one that is there. You might want to back up the existing one, just in case. Respring, and you will have just the iPod app.
Now, if you want to change the wording when you double-tap the home button from "music" to "iPod" you can download this file and drop the enclosed file into /System/Library/CoreServices/SpringBoard.app/English.lproj overwriting the file there. This file has all the other default strings so if you've changed them with Customize this file will change them back to original.
Installer crashes
After installing the latest update for installer.app you may find it crashing every time you try to install something, popping up a 'main script error' window. This is how I fixed it. Enter the following two commands in term-vt100 or in Terminal on your Mac (to use Terminal on your Mac, enter this command: "ssh root@YOURIPODSIPADDRESS" minus the quotation marks, of course, after which you will be prompted for the password "alpine")
chmod +s /Applications/Installer.app/Installer
chown -R root:wheel /Applications/Installer.app
After entering these two commands, installer.app should work fine!
TERM-VT100 password error
After doing a 1.1.3 JB you may find it impossible to use terminal on your iPod. The solution is simple. Go to installer and add the source www.trejan.com/irepo then find SUID Lib Fix and install that, then find Term-vt100 SUID Fix and install that. After restarting your iPod, terminal will work fine with the password "alpine".
Summerboard themes don't show up
The location of the themes has been changed with the latest version, and sources have to change where they download to. The old location was /private/var/root/Library/SummerBoard/Themes and the new location is /private/var/mobile/SummerBoard/Themes. If you SSH into your Touch, just move the Themes in the old location to the new one and they will show up.
Maps' Hybrid view doesn't work
Go to var/mobile/Library/Library/Caches/MapTiles and delete the file MapTiles.sqlitedb which is the cache for the maps app. The next time you launch Maps, hybrid view should work fine. Sometimes it doesn't start to work until after you have zoomed to the maximum level, after which it works at all zoom levels. An odd little bug.