You should still be able to use 'ppm install <modulename>' from the command line. 'ppm' with no arguments will launch the GUI. I had to get used to the same thing - I believe it started in 5.8.8.

As far as getting PPM modules, try this link:

http://ppm.activestate.com/PPMPackages/zips/10xx-builds-only/Windows/

You can also download the tar.gz from CPAN and use NMAKE.EXE. Just follow the instructions in the readme, usually:

perl Makefile.PL
nmake
nmake install
[download]

Notice 'make' is replaced with 'nmake' when you're doing this on Windows. You can get NMAKE.EXE from:

http://download.microsoft.com/download/vc15/patch/1.52/w95/en-us/nmake15.exe

Note this may make your PPM repository out of sync with what you've actually installed since you are installing some packages without PPM.