Here is quick install howto for swftools 0.9.1 on CentOS 5.5:

Get the swftools-0.9.1 (this is the current for now):

[root@centos5 ~]# wget http://www.swftools.org/swftools-0.9.1.tar.gz

[root@centos5 ~]# gunzip swftools-0.9.1.tar.gz

[root@centos5 ~]# tar xzf swftools-0.9.1.tar.gz

Now you have to compile it so you need to have gcc and some libraries and components installed (automake, zlib-devel, libjpeg-devel, giflib-devel, freetype-devel) so you don’t get errors during the compile process:

[root@centos5 ~]# yum install gcc* automake zlib-devel libjpeg-devel giflib-devel freetype-devel

[root@centos5 ~]# cd swftools-0.9.1

[root@centos5 ~]# ./configure

[root@centos5 ~]# make

[root@centos5 ~]# make install