tilestache-compose: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/tilestache-compose - from package: tilestache

You may install the required package with command apt-get install {package}
Error in other languages:
tilestache-compose: bevel nie gevind nie
tilestache-compose: comandă negăsită
tilestache-compose: comando não encontrado
tilestache-compose: commande introuvable
tilestache-compose: command not found
tilestache-compose: käsku ei ole
tilestache-compose: không tìm thấy lệnh
tilestache-compose: komanda nerasta
tilestache-compose: Kommando nicht gefunden.
tilestache-compose: kommandot finns inte
tilestache-compose: komut yok
tilestache-compose: nie znaleziono polecenia
tilestache-compose: níor aimsíodh an t-ordú
tilestache-compose: no se encontró la orden
tilestache-compose: no s'ha trobat l'ordre
tilestache-compose: opdracht niet gevonden
tilestache-compose: parancs nem található
tilestache-compose: perintah tidak ditemukan
tilestache-compose: príkaz nenájdený
tilestache-compose: příkaz nenalezen
tilestache-compose: команда не найдена
tilestache-compose: командата не е открита
tilestache-compose: 命令找不到
tilestache-compose: コマンドが見つかりません