How I did What

Make sure that 'Tool Options' is active. If not, to make it active and available, do the following  Go to Settings, Dockers and select 'Tool Options' Now you will see the Tool Options available for you to use.  Here is the image you want to transform. You want to stretch the top part of the image to make it look better.  Select Transform tool.  Then click on the layer you want to edit. Now you will see hands appearing on the sides of the image. Now select the 'Perspective tool' from the  'Tool Options' Stretch the top part of the image by holding the top handles and dragging to the direction you want.  Now it is done.  Use the 'Wrap' tool, 'Cage' and 'Mesh' tools to make your image transformation funny.   

We are going to cut out the image of the magazine from the above image.  Make sure the layer you want to select is active at the layers window. Use Polygonal selection tool for selecting the image you want to cut out. Start selection from left top corner and follow to right top, then to right bottom. Complete the selection process by selecting the starting point at the left top corner. Now the entire magazine is selected.  Go to Edit and Cut (Ctrl X)  Go to Edit and Paste (Ctrl V) The cut out part is now pasted on to a new layer which is automatically created.  Important: Use Ctrl + H to deselect the selection. Use Rectangular selection tool, Elliptical selection tool, Free-hand selection tool etc for selecting images of different shapes and types. Free-hand selection tool is very much useful for irregular shapes.

You have seen the error and your Scribus programme has crashed many times. So what's the solution?  I had this issue for Scribus 1.5.8 Do the following to get rid off.  Go to File > Preferences  Go to 'Start Up' Tab Uncheck 'Show Splashscreen' as in the image.  This has solved my issue. Hope this will help you too.