Do I have to enter a 1099-misc if it is under $1000?

Yes you have to enter a 1099Misc for any amount.  And you HAVE to file a return if you got a 1099Misc for any amount even if you only got $400 and no other income.

First of all, for Online versions you will need to use Home & Business.  But you might be able to use a lower version.   If you buy the Desktop CD or Download Software any version will handle it but you will get more help in Home & Business.

You can use Deluxe or Premier if you have very limited expenses such as supplies less than $100.   If you have more complex situations and/or higher expense amounts you will have to upgrade to the Home and Business product to fill out the full schedule C.

For the Online Deluxe and Premier (you can't use Free)...........You start out by filling out a 1099Misc even if you didn't get one.
Federal Taxes Tab
Wages & Income
Choose Jump to Full List -or  I'll choose what I work on
Then under 1099Misc and Other Common Income
Income from form 1099-MISC