Just had a look.. which .deb file are you trying to install..?

logmein-client_1.0.387-1_i386.deb

That file absolutely won't work on the N900..

When I looked at the N800/N810 link it told me my device wasn't supported.. and it is probably right! Email them ask them to update their support

Even using red-pill mode the phone might refuse to install the package because it is not suitable