Hi ,
1.Administration-->Setup-->General-->Report and Layout Manager
2.choose search option-->type General AR_INV-->Edit
3.Crystal report will open and it will ask sql password ,then give any number like 1(parameter value).
4.now yo can see two part design and view .
5.you have to do manual alignments in design part.
6.Try to post screen shot of design part ,so that we can give better idea.
-Rajesh NS