To add to sifo's correct instructions:
You not really install the package in the N900 package system, but you extract the content of the package to some directory subtree, therefore you need to specify which package, aka. path/to/Package, and you must specify the subtree of your file system.
(For me this is /opt/meecolay to have it all in one place)creates a directory called after the package name or quite similiar in /opt/meecolay besides the two meecolay directories /bin and /lib. Inside the package directory you find all the stuff, that the package usually 'installs', like /opt folder and /usr folder. Look into /opt/bin in this package's folder for the executable for the meecolay command might start the application.
There is some output in the terminal, if things go wrong or errors occur. This is useful for analyzing errors.