I am still having problems with keys.  By now I have got into a complete 
muddle and get no-where, or less than nowhere, with Googling, or searching my 
own archives, but more muddle.

Can some kind soul point me, in words of less than one syllable, at the 
correct keys for:

deb http://depot-trinity.dotriver.eu/trinity-v3.5.13/debian wheezy main
deb http://depot-trinity.dotriver.eu/trinity-builddeps-v3.5.13/debian wheezy
main

deb http://ppa.quickbuild.pearsoncomputing.net/slavek-banko/axis/ubuntu wheezy 
main

Thanks,
Lisi