What are the basic steps for investing the money in mutual funds.?

what are the basic steps for investing the money in mutual funds, and which mutual fund is better.

Standard investment advice is that you should invest in a diversified mix of stock, bond, and money market funds. I like Vanguard.com, other people like Fidelity, TIAA-CREF, and DFA. Buy no-load, low cost funds. If you are like most people you will invest part of your money aggressively in stock funds, and part conservatively in money market funds and bond funds. Vanguard has an on-line questionnaire which will give you an idea of how to do "Asset Allocation," determining how much to put in each type of fund.
If your company offers a 401K plan at work, try to invest the most you can. The money grows tax free, and some companies will match your contribution. Investing in a mutual fund IRA is also a good idea. If you have children, you may want to consider a 529 plan or other college savings plan that grows tax free.
I like index funds. Because of their broad diversification, you are less likely to have a dramatic drop in value. They also have the lowest expenses. For stock funds, I would suggest putting ~70-80% of your money in the Vanguard Total Stock Market Index Fund. and ~20-30% in a foreign stock index fund. However, there are many different opinions out there on what the best mutual funds are. Read the links below and form your own opinion.
If you have high-interest debt, like credit cards, it is best to pay this off first before trying most of the investment ideas above. You should also have 3-6 months of salary saved up as an emergency fund in a bank or money market fund before trying more risky investments.
Believing advice you get on Yahoo answers can be risky, so read these websites for further information. If you find it too confusing, contact a professional financial advisor. They will charge you significant commissions, however.
Sources:
http://www.vanguard.com/VGApp/hnw/planni...
http://www.fool.com/school.htm
http://sec.gov/investor/pubs/assetalloca...
http://www.diehards.org/readsites.htm
http://finance.yahoo.com/education/begin...
http://finance.yahoo.com/funds/basics
Asset Allocation Calculators
(Determining how much to put in stocks and how much into bonds and money markets is a personal decision depending on your financial status. These Asset Allocation questionaires give you a rough idea how to do this. I like Vanguard best, but try some of the other sites as well.)
https://personal.vanguard.com/VGApp/hnw/...
https://ais2.tiaa-cref.org/cgi-bin/WebOb...
http://www.ifa.com/SurveyNET/index.aspx
Web forum: http://www.diehards.org/
(Many investment web forums are overrun by scam artists. This one seems the most legitimate site.)

529 plans: http://www.savingforcollege.com

- Mutual Funds for Dummies, by Eric Tyson, will answer all your questions about mutual funds. Fantastic book

- A free downlodable book at http://www.invest-for-retirement.com has some good info as well ... although the author is a bit of a nerd.