finding problem with loops assignment and tutorial

dear sir,
In my system Iam unable to get the expected output for the loop code, what ever code given in tutorial.drop down code is showing "error on page" without giving any alert message, like this the others too.Iam done with 1st question of my assignment out of 5 questions,which is running without errors.
I couldn't get the logic for unique letter count program.And for the rest three as I couldn't able to run the tutorial code without error ,Iam unable to write code even for the rest.
My sincere request is I just have 2 days time after which I don't have the internet available to do the assignment.I shouln't have taken up this assgnment now but I thought I can finish it before sunday.So,please kindly help me to submit it before sunday.
Thanks

sir,
I did my assignment in other desktop which i couldn't get till next week but I didn't get any idea for the unique letter count and to get the date "19th april 1999".For the printing of numbers I have a confusion of where to give the spaces to display in that manner.I request you to help me in writing logic for these three questions and no issues with the rest two. So overall I tried for the 1,3,4 questions and unable to think on 2and 5.
how ever I couldn't submit this in time.so,please kindly help me in this regard.
Thanks & regards,
Sree sindhu sruthi.

Hi Sree Sindhu,

i want to know your approach to all the questions.. how u tried and all.. send me mail at vishwanath@siliconindia.com.