Save picture from message?

I know I did this, but for the life of me cannot do it again!
I received text with picture I want to keep.transfer to photo album...I click on the picture in the message/text and it pops up which program to use, default or astro...I try both, astro force closes and default one loads it, but no option to save it, only share.
I want it on my phon's photo album./


What phone do you have because when I try to hold button down on the Verizon Android Eris I only get the option to remove the app
From what i've heard on the Eris you need to get an app named "Save MMS" and that will allow you to save attachments because Stock eris does not do it for whatever reason.