MaxDB 32 bits on Windows 7 64 bits

I folks,

I use a 32 bits IDE witch connect to MaxDB using ODBC, so i need the 32 bit driver to create a 32 bits ODBC datasource.

Everything was OK, until ia receive a brand new computer, running... Windows 7 64 bits.

When i try to install MaxDb client (7.6.06.22), i have this message:

Cannot create package tree: unresolved dependency: package "Database connectivity" not found.

I've also tried version 7.8.02.21, and i get another message:

Software isn't runnable on your system.

What must i do ?

TIA

Frédéric.