$ perl -MData::Dumper -F, -lane '@F % 2 and push @D, {q{Stamp},@F} or $D[-1] = { %{$D[-1]}, @F } }{ print Dumper @D' input.txt

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$ perl -F, -lane '@F % 2 and push @D, {q{Stamp},@F} or $D[-1] = { %{$D[-1]}, @F } }{ $,=","; print @{$_}{qw(Stamp Login SearchResults SearchLoad SearchCount Logout)} for @D' input.txt