Download the only latest release, put it into the plugins folder and hope that it works
General
tf2slots <bot>
TF2 backpack slotstf2premium <bot>
TF2 premium status
Using items
tf2useid <bot> <itemId>
Use TF2 item by idtf2usedef <bot> <defIndex> <count | all>
Use TF2 item by def index
Removing items
tf2rm <bot> <itemId | all>
Delete TF2 itemstf2rmdef <bot> <defIndex>
Delete TF2 items by def index
Backpack expanders
tf2bec <bot>
Show backpack expander counttf2beu <bot> <count | all>
Use backpack expanders