請幫我轉兩段avi至gif~~~20分~~

http://www.sendspace.com/file/sixy0d
我upload到上面個網啦,
我有兩段片,
想轉做gif~~
但我冇任何軟件整唔到,
我試過download AVD Video Processor 7[1].5,
但都唔知點解轉唔到,
請大家幫幫我~please,
上面個file一共有7段片,
其實大家只要幫我轉2段就夠,
因為我唔知要咩格式所以repeat咗
片段一:gintama_movie(有avi同swf兩個格式)
片段二:houshin_engi(有avi,swf,mpg同wmv)

如果搞掂請upload去http://www.sendspace.com/
再比條link我,thx~~