Q: Is a major sin for a couple to look at the private parts of each other?

Q: I am a software developer and i work for a pakistani software house. This software house is a partner of an american software house. My company primary business is to make softwares related to business, school and law for the western countries. The software on which i am working on is the ERP(Enterprise resource planning). ERP is the system which automates the whole accounting in the business process. For more details see the link below 

http://en.wikipedia.org/wiki/Enterprise_resource_planning

This ERP has one part in which it provides functionality of collecting interest. Companies which want to use this feature can separately pay for this feature and companies can also turn off this functionality. Now as a software developer, if i am assigned a task of enhancing interest functionality, which is to write code to add functionality. Will this be halal for me? When i joined the company, i was not informed and i was not even aware that ERP can also have interest functionality. i have also did not signed any contract that i would not do it. Now in this situation what should i do? If i work for this feature, will my salary be halal for me? If it is haram and if i have already worked on this functionality, what should i do with my salary that i earned while working on this feature?

Q: I would to know the masla on donating organs in islaam! As well as donating blood?

Q: What is the ruling on women wearing high heels?

Q: Is it permissible to sell artificial hair?

Q: I would like to know detailed rulings on Pubic Hair and Hair under Armpits.

1. Is there any time limit like 40 days? Is that Fard, Wajid or Sunnah?
2. Is it true that one's supplication will get no answer if those hairs are not removed within 40 days?
3. Can we use Hair Removing Cream or Lotion instead of Scissors, Razor or some other sharp things since they are risky in handling?
4. Actual boundaries of Pubic/Under Armpit Hair to be removed?
5. Hair around the Anus?

Q: I would like to know the rulings regarding disposal of hair of head, pubic hair and hair under armpits, finger nails. What should we do with them once cut and removed? Should we bury them or can throw away anywhere, like in the garbage?

Q: What can a Muslim do with interest money, can he give a Muslim?

Q: Could you also inform me where does the beard starts from? I often face this dilemma when cutting my hair (head)?

Q: What is the Sunnah of cutting the hair of the head?