So in a nutshell:

Script 1 executes script 2 and passes two pieces of information to it? Ok, cutting out the noise somewhat you have something like this:

script 1:

my $script2 = ...; # including dir as required
my $param1 = ...;
my $param2 = ...;

system("$script2 \"$param1\" \"$param2\"");

script 2:

my $param1 = shift; #Pull off the first command line argument
my $param2 = shift; #Pull off the second command line argument

#do stuff with $param1 and $param2
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