on page 3 of this thread specifically in a post done by ottoman gives a web adress. so what i did was i uninstall the sofware installed from the app manager, and then i clicked on that adress, sent me to original page i think, and once there i clicked on the icon to add the repository first to the n900 and then just wait seconds for the app to be downloaded, after that i open xterm and run apt-get update and after apt-get install tcl-tls and i had no problem at all installation were ok !!!!!remember first the downloadin repository and wait a minute or something for the app downloading its automatically!!!!!!! hopefully it helps, sorry my english since is not my native language good luck