ispCP 1.0.0 update to 1.0.3-1 database update failed

[zeosunang]

Hello,

while updating ispCP from version 1.0.0 stable to 1.0.3-1 i encountered several problems. However i was able to solve most of them.
But now update wont continue due to database errors:

Update ispCP database shema: [failed]

printing /tmp/ispcp-update-database.log results in
sh: /usr/bin/php5: file or directory does not exist.

i recently upgraded Debain etch to lenny, but the problem existed before.
while executing "aptitude full-upgrade" my system encounter the following error:

Sub-process /usr/bin/dpkg returned an error code (1)

but i dont know if this has something to do with my ispcp problem.

thanks for help! and sorry for my bad english