How am I doing?

[Jason]

Please don't laugh, this is my FIRST Python script where I haven't 
looked at the manual for help...

import string
import random

class hiScores:
 
hiScores=['10000Alpha','07500Beta','05000Gamma','02500Delta','00000Epsilon']

     def showScores(self):
         for entry in self.hiScores:
             print entry[0:5]," - ",entry[5:]

     def addScore(self,score,name):
         newScore=string.zfill(score,5)
         self.hiScores.append(newScore+name)
         self.hiScores.sort(reverse=True)

         if len(self.hiScores)==6:
             del self.hiScores[-1]

a=hiScores()
print "Original Scores\n---------------"
a.showScores()

while 1:
     newScore=random.randint(0,10000)
     if string.zfill(newScore,5)>a.hiScores[4][0:5]:
         print "Congratulations, you scored %d " % newScore
         name=raw_input("Please enter your name :")
         a.addScore(newScore,name)
         a.showScores()
     continue

Anything I could have done differently or any "bad-habits" you think I 
have which could lead to ultimate doom I really appreciate to know.

TIA