Don't worry man no-one thinks you are stupid. In fact i used to have a hard time installing any plug in. so don't worry.
regarding your problem i have downloaded my cps and docs from these links.
https://www.lightstorm3d.com/tools/fr....0_maya4.x.zip
https://www.lightstorm3d.com/tools/fr...ps3.0_docs.zip
maybe you have some corrupted file????
if this does not help contact me again or i would be glad to help you through MSN messenger.
my MSN in mizin_alex@hotmail.com
Alex
MSN: mizin_alex@hotmail.com
E-MAIL: mizina@alphalink.com.au