hey j,
you could read the flat file in (see php.net/fopen for the supereasy lines of code to read a file in) and store in in an array, then work up some code to only display 10 of those array elements at a time, followed with a 'next' link. in the link, include a # which is the record to start the dispaly on... for example the 'next' link on the first page would be
<a href='guest.php?start=11'>next page</a>
and when the script runs again, if the $start variable is set, begin the display of ten records from that point. right?
hope that helps,
best
Eric