I used TSM at the last place, V5.2 I think, and I never could get the Admin boys round to setting up Transaction Log backups going.
I also found the GUI unreliable, so much so I wrote my own in Excel! If you are interested, you down load it here:
<shameless plug>http://glossopian.co.uk/pmwiki.php?n=Main.SQLTSMRestores</shameless plug>
Dave J