[Plugin: Display Posts Shortcode] title of post without link

Finally (and thank you for all of your help, as I said, this plugin helps me immensely, despite all the questions), I am hoping to just include a non-linked version of the title. I have gone into the css and I see how to do this on my own (and I was successful), but I am concerned that future updates of the plugin will wipe out my changes each time. Also, I was curious if there’s any way to add a new argument (is that the right term?), that is an unlinked title, as opposed to the one included, that is (by default)linked. This would provide some flexibility, in case there was some area that I wanted to include linked titles, as opposed to unlinked ones. Currently though, I don’t want users to have the option to see the individual post, but instead, just an aggregated feed of all the posts together. I will be using Display Posts Shortcode on my landing page (inside a widget, but only displaying the three most recent) and also on it’s own dedicated page where all posts will be included. Anyway, the question is: is my only option to go in and change the css to customize this (and risk losing it with future updates) or is there a more efficient and sustainable way of going about it? Thank you.

http://wordpress.org/extend/plugins/display-posts-shortcode/