Here is an idea...
This gets the first 4 space separated things and the 5th thing is left all together. Parsing that last thing will be the most difficult.

#!usr/bin/perl -w
use strict;

while ( my $line =(<DATA>) )
{

  my @tokens = my ($ip,$date,$time,$number,$text)= 
     $line =~ m/^(\S+)\s*(\S+)\s*(\S+)\s*(\S+)\s*(.*)$/;
  print "Line =\t$line";
  foreach my $token (@tokens)
  {
     print "\t$token\n";
  }
}
###########   Output  ###################
#Line =    10.30.147.23    2009-06-15    09:04:47    1245053087    Hel
+p for Hospices    no-email    no-comment
#    10.30.147.23
#    2009-06-15
#    09:04:47
#    1245053087
#    Help for Hospices    no-email    no-comment
#Line =    192.9.200.49    2009-06-15    09:04:50    1245053090    Alz
+heimer's Society/Alzheimer Scotland    no-email    no-comment
#    192.9.200.49
#    2009-06-15
#    09:04:50
#    1245053090
#    Alzheimer's Society/Alzheimer Scotland    no-email    no-comment
#Line =    10.30.117.36    2009-06-15    09:04:50    1245053090    Hel
+p for Hospices    no-email    no-comment
#    10.30.117.36
#    2009-06-15
#    09:04:50
#    1245053090
#    Help for Hospices    no-email    no-comment
#Line =    10.30.135.9    2009-06-15    09:04:50    1245053090    NSPC
+C Childline    no-email    no-comment
#       10.30.135.9
#    2009-06-15
#    09:04:50
#    1245053090
#    NSPCC Childline    no-email    no-comment
#Line =    10.30.198.18    2009-06-15    09:04:59    1245053099    Hel
+p for Hospices    no-email    no-comment
#    10.30.198.18
#    2009-06-15
#    09:04:59
#    1245053099
#    Help for Hospices    no-email    no-comment
__DATA__
10.30.147.23    2009-06-15    09:04:47    1245053087    Help for Hospi
+ces    no-email    no-comment
192.9.200.49    2009-06-15    09:04:50    1245053090    Alzheimer's So
+ciety/Alzheimer Scotland    no-email    no-comment
10.30.117.36    2009-06-15    09:04:50    1245053090    Help for Hospi
+ces    no-email    no-comment
10.30.135.9    2009-06-15    09:04:50    1245053090    NSPCC Childline
+    no-email    no-comment
10.30.198.18    2009-06-15    09:04:59    1245053099    Help for Hospi
+ces    no-email    no-comment
[download]