Hi, Beezerlm
Yes, Most BOB use a 25 pin connector, So you need a 25pin M to 25pin F cable (normally called a Printer extender cable), Serial cables rarely use all 25 pins.
All though some BOB use a standard printer cable.
Yes, Most computers Lpt1 is the only one unless some one has added more Lpt's.
Hope this Helps, Chip