Add spaces: 5files,lastoneaddedonMay08,2007

Answer: 5 files, last one added on May 08, 2007

Add spaces: On20.11.1943"S56"wasvictimtoanAlliedbombattack,"S58"and"S155"werelighterdamaged.

Answer: On 20.11.1943 "S 56" was victim to an Allied bomb attack, "S 58" and "S 155" were lighter damaged.

Add spaces: ThissecondpassbringsthecometoutsideofyourSolarSystem,butasecondsetofcataclysmswilloccuratthattime.

Answer:
This second pass brings the comet outside of your Solar System, but a second set of cataclysms will occur at that time.